{"current_name":"Devils Tower National Monument","states":"Wyoming","current_agency":"NPS","action":"Established","date":"1906-09-24","year":"1906","pres_or_congress":"T. Roosevelt","acres_affected":1193.91}
{"current_name":"El Morro National Monument","states":"New Mexico","current_agency":"NPS","action":"Established","date":"1906-12-08","year":"1906","pres_or_congress":"T. Roosevelt","acres_affected":160}
{"current_name":"El Morro National Monument","states":"New Mexico","current_agency":"NPS","action":"Enlarged","date":"1917-06-18","year":"1917","pres_or_congress":"W. Wilson","acres_affected":240}
{"current_name":"Montezuma Castle National Monument","states":"Arizona","current_agency":"NPS","action":"Established","date":"1906-12-08","year":"1906","pres_or_congress":"T. Roosevelt","acres_affected":161.39}
{"current_name":"Montezuma Castle National Monument","states":"Arizona","current_agency":"NPS","action":"Enlarged","date":"1937-02-23","year":"1937","pres_or_congress":"F. D. Roosevelt","acres_affected":360}
{"current_name":"Montezuma Castle National Monument","states":"Arizona","current_agency":"NPS","action":"Enlarged","date":"1978-11-10","year":"1978","pres_or_congress":"95th Congress","acres_affected":13}
{"current_name":"Montezuma Castle National Monument","states":"Arizona","current_agency":"NPS","action":"Deleted","date":"1978-11-10","year":"1978","pres_or_congress":"95th Congress","acres_affected":5}
{"current_name":"Petrified Forest National Park","states":"Arizona","original_name":"Petrified Forest National Monument","current_agency":"NPS","action":"Established","date":"1906-12-08","year":"1906","pres_or_congress":"T. Roosevelt","acres_affected":60776.02}
{"current_name":"Petrified Forest National Park","states":"Arizona","original_name":"Petrified Forest National Monument","current_agency":"NPS","action":"Diminished","date":"1911-07-31","year":"1911","pres_or_congress":"W. Taft","acres_affected":25625.6}
{"current_name":"Petrified Forest National Park","states":"Arizona","original_name":"Petrified Forest National Monument","current_agency":"NPS","action":"Enlarged","date":"1930-11-14","year":"1930","pres_or_congress":"H. Hoover","acres_affected":11010}
{"current_name":"Petrified Forest National Park","states":"Arizona","original_name":"Petrified Forest National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1958-03-28","year":"1958","pres_or_congress":"85th Congress"}
{"current_name":"Petrified Forest National Park","states":"Arizona","original_name":"Petrified Forest National Monument","current_agency":"NPS","action":"Enlarged","date":"1931-11-30","year":"1931","pres_or_congress":"H. Hoover"}
{"current_name":"Petrified Forest National Park","states":"Arizona","original_name":"Petrified Forest National Monument","current_agency":"NPS","action":"Enlarged","date":"1932-09-23","year":"1932","pres_or_congress":"H. Hoover","acres_affected":53300}
{"current_name":"Chaco Culture National Historical Park","states":"New Mexico","original_name":"Chaco Canyon National Monument","current_agency":"NPS","action":"Established","date":"1907-03-11","year":"1907","pres_or_congress":"T. Roosevelt","acres_affected":10643.13}
{"current_name":"Chaco Culture National Historical Park","states":"New Mexico","original_name":"Chaco Canyon National Monument","current_agency":"NPS","action":"Enlarged","date":"1928-01-10","year":"1928","pres_or_congress":"C. Coolidge","acres_affected":21509.4}
{"current_name":"Chaco Culture National Historical Park","states":"New Mexico","original_name":"Chaco Canyon National Monument","current_agency":"NPS","action":"Redesignated Chaco Culture NHP","date":"1980-12-19","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Lassen Volcanic National Park","states":"California","original_name":"Cinder Cone National Monument","current_agency":"NPS","action":"Established","date":"1907-05-06","year":"1907","pres_or_congress":"T. Roosevelt","acres_affected":5120}
{"current_name":"Lassen Volcanic National Park","states":"California","original_name":"Cinder Cone National Monument","current_agency":"NPS","action":"Incorporated into Lassen Volcanic NP","date":"1916-08-09","year":"1916","pres_or_congress":"64th Congress"}
{"current_name":"Lassen Volcanic National Park","states":"California","original_name":"Lassen Volcanic National Monument","current_agency":"NPS","action":"Established","date":"1907-05-06","year":"1907","pres_or_congress":"T. Roosevelt","acres_affected":1280}
{"current_name":"Lassen Volcanic National Park","states":"California","original_name":"Lassen Volcanic National Monument","current_agency":"NPS","action":"Redesignated Lassen Volcanic NP","date":"1916-08-09","year":"1916","pres_or_congress":"64th Congress"}
{"current_name":"Gila Cliff Dwellings National Monument","states":"New Mexico","current_agency":"NPS","action":"Established","date":"1907-11-16","year":"1907","pres_or_congress":"T. Roosevelt","acres_affected":160}
{"current_name":"Gila Cliff Dwellings National Monument","states":"New Mexico","current_agency":"NPS","action":"Enlarged","date":"1962-04-17","year":"1962","pres_or_congress":"J. Kennedy","acres_affected":373.25}
{"current_name":"Tonto National Monument","states":"Arizona","current_agency":"NPS","action":"Established","date":"1907-12-19","year":"1907","pres_or_congress":"T. Roosevelt","acres_affected":640}
{"current_name":"Tonto National Monument","states":"Arizona","current_agency":"NPS","action":"Enlarged","date":"1937-04-01","year":"1937","pres_or_congress":"F. D. Roosevelt","acres_affected":480}
{"current_name":"Muir Woods National Monument","states":"California","current_agency":"NPS","action":"Established","date":"1908-01-09","year":"1908","pres_or_congress":"T. Roosevelt","acres_affected":295}
{"current_name":"Muir Woods National Monument","states":"California","current_agency":"NPS","action":"Enlarged","date":"1921-09-22","year":"1921","pres_or_congress":"W. Harding","acres_affected":128.14}
{"current_name":"Muir Woods National Monument","states":"California","current_agency":"NPS","action":"Enlarged","date":"1935-04-05","year":"1935","pres_or_congress":"F. D. Roosevelt","acres_affected":1.36}
{"current_name":"Muir Woods National Monument","states":"California","current_agency":"NPS","action":"Enlarged","date":"1951-06-26","year":"1951","pres_or_congress":"H. Truman","acres_affected":504.271}
{"current_name":"Muir Woods National Monument","states":"California","current_agency":"NPS","action":"Enlarged","date":"1959-09-08","year":"1959","pres_or_congress":"D. Eisenhower","acres_affected":6.16}
{"current_name":"Grand Canyon National Park","states":"Arizona","original_name":"Grand Canyon National Monument","current_agency":"NPS","action":"Established","date":"1908-01-11","year":"1908","pres_or_congress":"T. Roosevelt","acres_affected":808120}
{"current_name":"Grand Canyon National Park","states":"Arizona","original_name":"Grand Canyon National Monument","current_agency":"NPS","action":"Redesignated Grand Canyon NP","date":"1919-02-26","year":"1919","pres_or_congress":"65th Congress"}
{"current_name":"Pinnacles National Park","states":"California","original_name":"Pinnacles National Monument","current_agency":"NPS","action":"Established","date":"1908-01-16","year":"1908","pres_or_congress":"T. Roosevelt","acres_affected":1320}
{"current_name":"Pinnacles National Park","states":"California","original_name":"Pinnacles National Monument","current_agency":"NPS","action":"Enlarged","date":"1923-05-07","year":"1923","pres_or_congress":"W. Harding","acres_affected":2653.46}
{"current_name":"Pinnacles National Park","states":"California","original_name":"Pinnacles National Monument","current_agency":"NPS","action":"Enlarged","date":"1924-07-02","year":"1924","pres_or_congress":"C. Coolidge","acres_affected":2980.26}
{"current_name":"Pinnacles National Park","states":"California","original_name":"Pinnacles National Monument","current_agency":"NPS","action":"Enlarged","date":"1931-04-13","year":"1931","pres_or_congress":"H. Hoover","acres_affected":1926.35}
{"current_name":"Pinnacles National Park","states":"California","original_name":"Pinnacles National Monument","current_agency":"NPS","action":"Enlarged","date":"1933-07-11","year":"1933","pres_or_congress":"F. D. Roosevelt","acres_affected":4805}
{"current_name":"Pinnacles National Park","states":"California","original_name":"Pinnacles National Monument","current_agency":"NPS","action":"Enlarged","date":"1941-12-05","year":"1941","pres_or_congress":"F. D. Roosevelt","acres_affected":4589.26}
{"current_name":"Pinnacles National Park","states":"California","original_name":"Pinnacles National Monument","current_agency":"NPS","action":"Enlarged","date":"2000-01-11","year":"2000","pres_or_congress":"W. Clinton","acres_affected":7900}
{"current_name":"Pinnacles National Park","states":"California","original_name":"Pinnacles National Monument","current_agency":"NPS","action":"Redesignated NP","date":"2013-01-10","year":"2013","pres_or_congress":"112th Congress","acres_affected":440}
{"current_name":"Jewel Cave National Monument","states":"South Dakota","current_agency":"NPS","action":"Established","date":"1908-02-07","year":"1908","pres_or_congress":"T. Roosevelt","acres_affected":1274.56}
{"current_name":"Natural Bridges National Monument","states":"Utah","current_agency":"NPS","action":"Established","date":"1908-04-16","year":"1908","pres_or_congress":"T. Roosevelt","acres_affected":120}
{"current_name":"Natural Bridges National Monument","states":"Utah","current_agency":"NPS","action":"Enlarged","date":"1909-09-25","year":"1909","pres_or_congress":"W. Taft","acres_affected":2620}
{"current_name":"Natural Bridges National Monument","states":"Utah","current_agency":"NPS","action":"Boundaries Confirmed","date":"1916-02-11","year":"1916","pres_or_congress":"W. Wilson"}
{"current_name":"Natural Bridges National Monument","states":"Utah","current_agency":"NPS","action":"Enlarged","date":"1962-08-14","year":"1962","pres_or_congress":"J. Kennedy","acres_affected":5236}
{"current_name":"Natural Bridges National Monument","states":"Utah","current_agency":"NPS","action":"Diminished","acres_affected":320}
{"current_name":"Lewis and Clark Caverns State Park","states":"Montana","original_name":"Lewis and Clark Cavern National Monument","current_agency":"State of Montana","action":"Established","date":"1908-05-11","year":"1908","pres_or_congress":"T. Roosevelt","acres_affected":160}
{"current_name":"Lewis and Clark Caverns State Park","states":"Montana","original_name":"Lewis and Clark Cavern National Monument","current_agency":"State of Montana","action":"Boundaries Confirmed","date":"1911-05-16","year":"1911","pres_or_congress":"W. Taft","acres_affected":160}
{"current_name":"Lewis and Clark Caverns State Park","states":"Montana","original_name":"Lewis and Clark Cavern National Monument","current_agency":"State of Montana","action":"Transferred to MT, now a state park","date":"1937-08-24","year":"1937","pres_or_congress":"75th Congress"}
{"current_name":"Tumacacori National Historical Park","states":"Arizona","original_name":"Tumacacori National Monument","current_agency":"NPS","action":"Established","date":"1908-09-15","year":"1908","pres_or_congress":"T. Roosevelt","acres_affected":10}
{"current_name":"Tumacacori National Historical Park","states":"Arizona","original_name":"Tumacacori National Monument","current_agency":"NPS","action":"Enlarged","date":"1958-03-28","year":"1958","pres_or_congress":"D. Eisenhower","acres_affected":0.15}
{"current_name":"Tumacacori National Historical Park","states":"Arizona","original_name":"Tumacacori National Monument","current_agency":"NPS","action":"Enlarged","date":"1978-11-10","year":"1978","pres_or_congress":"95th Congress","acres_affected":7}
{"current_name":"Tumacacori National Historical Park","states":"Arizona","original_name":"Tumacacori National Monument","current_agency":"NPS","action":"Deleted","date":"1978-11-10","year":"1978","pres_or_congress":"95th Congress","acres_affected":0.011}
{"current_name":"Tumacacori National Historical Park","states":"Arizona","original_name":"Tumacacori National Monument","current_agency":"NPS","action":"Redesignated NHP","date":"1990-08-06","year":"1990","pres_or_congress":"101st Congress"}
{"current_name":"Part of Rio Grande National Forest","states":"Colorado","original_name":"Wheeler National Monument","current_agency":"BLM","action":"Established","date":"1908-12-07","year":"1908","pres_or_congress":"T. Roosevelt","acres_affected":300}
{"current_name":"Part of Rio Grande National Forest","states":"Colorado","original_name":"Wheeler National Monument","current_agency":"BLM","action":"Transferred to BLM, part of Rio Grande National Forest","date":"1950-08-03","year":"1950","pres_or_congress":"81st Congress"}
{"current_name":"Olympic National Park","states":"Washington","original_name":"Mount Olympus","current_agency":"NPS","action":"Established","date":"1909-03-02","year":"1909","pres_or_congress":"T. Roosevelt","acres_affected":639200}
{"current_name":"Olympic National Park","states":"Washington","original_name":"Mount Olympus","current_agency":"NPS","action":"Diminished","date":"1912-04-17","year":"1912","pres_or_congress":"W. Taft","acres_affected":160}
{"current_name":"Olympic National Park","states":"Washington","original_name":"Mount Olympus","current_agency":"NPS","action":"Diminished","date":"1915-05-11","year":"1915","pres_or_congress":"W. Wilson","acres_affected":313280}
{"current_name":"Olympic National Park","states":"Washington","original_name":"Mount Olympus","current_agency":"NPS","action":"Diminished","date":"1929-01-07","year":"1929","pres_or_congress":"C. Coolidge","acres_affected":640}
{"current_name":"Olympic National Park","states":"Washington","original_name":"Mount Olympus","current_agency":"NPS","action":"Redesignated NP","date":"1938-06-29","year":"1938","pres_or_congress":"75th Congress"}
{"current_name":"Navajo National Monument","states":"Arizona","current_agency":"NPS","action":"Established","date":"1909-03-20","year":"1909","pres_or_congress":"W. Taft","acres_affected":360}
{"current_name":"Navajo National Monument","states":"Arizona","current_agency":"NPS","action":"Diminished","date":"1912-03-14","year":"1912","pres_or_congress":"W. Taft","acres_affected":320}
{"current_name":"Oregon Caves National Monument and Preserve","states":"Oregon","original_name":"Oregon Caves National Monument","current_agency":"NPS","action":"Established","date":"1909-07-12","year":"1909","pres_or_congress":"W. Taft","acres_affected":465.8}
{"current_name":"Oregon Caves National Monument and Preserve","states":"Oregon","original_name":"Oregon Caves National Monument","current_agency":"NPS","action":"Enlarged","date":"1978-11-10","year":"1978","pres_or_congress":"95th Congress","acres_affected":8}
{"current_name":"Oregon Caves National Monument and Preserve","states":"Oregon","original_name":"Oregon Caves National Monument","current_agency":"NPS","action":"Redesignated NMP","date":"2014-12-19","year":"2014","pres_or_congress":"113th Congress"}
{"current_name":"Zion National Park","states":"Utah","original_name":"Mukuntu-Weap/Zion National Monument","current_agency":"NPS","action":"Established","date":"1909-07-31","year":"1909","pres_or_congress":"W. Taft","acres_affected":16000}
{"current_name":"Zion National Park","states":"Utah","original_name":"Mukuntu-Weap/Zion National Monument","current_agency":"NPS","action":"Enlarged & Renamed","date":"1918-03-18","year":"1918","pres_or_congress":"W. Wilson","acres_affected":76800}
{"current_name":"Zion National Park","states":"Utah","original_name":"Mukuntu-Weap/Zion National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1919-11-19","year":"1919","pres_or_congress":"66th Congress"}
{"current_name":"Spirit Mountain Cave","states":"Wyoming","original_name":"Shoshone Cavern","current_agency":"BLM","action":"Established","date":"1909-09-21","year":"1909","pres_or_congress":"W. Taft","acres_affected":210}
{"current_name":"Spirit Mountain Cave","states":"Wyoming","original_name":"Shoshone Cavern","current_agency":"BLM","action":"Transferred to WY","date":"1954-05-17","year":"1954","pres_or_congress":"83d Congress"}
{"current_name":"Salinas Pueblo Missions National Monument","states":"New Mexico","original_name":"Gran Quivira","current_agency":"NPS","action":"Established","date":"1909-11-01","year":"1909","pres_or_congress":"W. Taft","acres_affected":160}
{"current_name":"Salinas Pueblo Missions National Monument","states":"New Mexico","original_name":"Gran Quivira","current_agency":"NPS","action":"Enlarged","date":"1919-11-25","year":"1919","pres_or_congress":"W. Wilson","acres_affected":240}
{"current_name":"Salinas Pueblo Missions National Monument","states":"New Mexico","original_name":"Gran Quivira","current_agency":"NPS","action":"Abolished, funds available to Salinas NM","date":"1980-12-19","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Salinas Pueblo Missions National Monument","states":"New Mexico","original_name":"Gran Quivira","current_agency":"NPS","action":"Redesignated Salinas Pueblo Missions NM","date":"1988-10-28","year":"1988"}
{"current_name":"Sitka National Historical Park","states":"Alaska","original_name":"Sitka National Monument","current_agency":"NPS","action":"Established","date":"1910-03-23","year":"1910","pres_or_congress":"W. Taft","acres_affected":57}
{"current_name":"Sitka National Historical Park","states":"Alaska","original_name":"Sitka National Monument","current_agency":"NPS","action":"Resurveyed & Enlarged","date":"1952-02-25","year":"1952","pres_or_congress":"H. Truman","acres_affected":54.334}
{"current_name":"Sitka National Historical Park","states":"Alaska","original_name":"Sitka National Monument","current_agency":"NPS","action":"Redesignated NHP","date":"1972-10-18","year":"1972","pres_or_congress":"92d Congress"}
{"current_name":"Sitka National Historical Park","states":"Alaska","original_name":"Sitka National Monument","current_agency":"NPS","action":"Deleted","date":"1983-07-30","year":"1983","pres_or_congress":"96th Congress"}
{"current_name":"Rainbow Bridge National Monument","states":"Utah","current_agency":"NPS","action":"Established","date":"1910-05-30","year":"1910","pres_or_congress":"W. Taft","acres_affected":160}
{"current_name":"Big Hole National Battlefield","states":"Montana","original_name":"Big Hole Battlefield National Monument","current_agency":"NPS","action":"Established","date":"1910-06-23","year":"1910","pres_or_congress":"W. Taft","acres_affected":5}
{"current_name":"Big Hole National Battlefield","states":"Montana","original_name":"Big Hole Battlefield National Monument","current_agency":"NPS","action":"Enlarged","date":"1939-06-29","year":"1939","pres_or_congress":"F. D. Roosevelt","acres_affected":195}
{"current_name":"Big Hole National Battlefield","states":"Montana","original_name":"Big Hole Battlefield National Monument","current_agency":"NPS","action":"Redesignated NB","date":"1963-05-17","year":"1963","pres_or_congress":"88th Congress"}
{"current_name":"Colorado National Monument","states":"Colorado","current_agency":"NPS","action":"Established","date":"1911-05-24","year":"1911","pres_or_congress":"W. Taft","acres_affected":13883.06}
{"current_name":"Colorado National Monument","states":"Colorado","current_agency":"NPS","action":"Enlarged","date":"1933-03-03","year":"1933","pres_or_congress":"H. Hoover"}
{"current_name":"Colorado National Monument","states":"Colorado","current_agency":"NPS","action":"Diminished","date":"1959-08-07","year":"1959","pres_or_congress":"D. Eisenhower","acres_affected":211}
{"current_name":"Colorado National Monument","states":"Colorado","current_agency":"NPS","action":"Enlarged","acres_affected":120}
{"current_name":"Devils Postpile National Monument","states":"California","current_agency":"NPS","action":"Established","date":"1911-07-06","year":"1911","pres_or_congress":"W. Taft","acres_affected":798.46}
{"current_name":"Cabrillo National Monument","states":"California","current_agency":"NPS","action":"Established","date":"1913-10-14","year":"1913","pres_or_congress":"W. Wilson","acres_affected":0.5}
{"current_name":"Cabrillo National Monument","states":"California","current_agency":"NPS","action":"Enlarged","date":"1959-02-02","year":"1959","pres_or_congress":"D. Eisenhower","acres_affected":80}
{"current_name":"Cabrillo National Monument","states":"California","current_agency":"NPS","action":"Enlarged","date":"1974-09-28","year":"1974","pres_or_congress":"G. Ford","acres_affected":56.6}
{"current_name":"Papago Park","states":"Arizona","original_name":"Papago Saguaro National Monument","current_agency":"State of Arizona","action":"Established","date":"1914-01-31","year":"1914","pres_or_congress":"W. Wilson","acres_affected":2050.43}
{"current_name":"Papago Park","states":"Arizona","original_name":"Papago Saguaro National Monument","current_agency":"State of Arizona","action":"Transferred to AZ, now Papago Park","date":"1930-04-07","year":"1930","pres_or_congress":"71st Congress"}
{"current_name":"Dinosaur National Monument","states":"Utah, Colorado","current_agency":"NPS","action":"Established","date":"1915-10-04","year":"1915","pres_or_congress":"W. Wilson","acres_affected":80}
{"current_name":"Dinosaur National Monument","states":"Utah, Colorado","current_agency":"NPS","action":"Enlarged","date":"1938-07-14","year":"1938","pres_or_congress":"F. D. Roosevelt","acres_affected":203885}
{"current_name":"Walnut Canyon National Monument","states":"Arizona","current_agency":"NPS","action":"Established","date":"1915-11-30","year":"1915","pres_or_congress":"W. Wilson","acres_affected":960}
{"current_name":"Walnut Canyon National Monument","states":"Arizona","current_agency":"NPS","action":"Enlarged","date":"1938-09-24","year":"1938","pres_or_congress":"F. D. Roosevelt","acres_affected":913.6}
{"current_name":"Bandelier National Monument","states":"New Mexico","current_agency":"NPS","action":"Established","date":"1916-02-11","year":"1916","pres_or_congress":"W. Wilson","acres_affected":23352}
{"current_name":"Bandelier National Monument","states":"New Mexico","current_agency":"NPS","action":"Enlarged","date":"1932-02-15","year":"1932","pres_or_congress":"H. Hoover"}
{"current_name":"Bandelier National Monument","states":"New Mexico","current_agency":"NPS","action":"Enlarged","date":"1961-01-09","year":"1961","pres_or_congress":"D. Eisenhower","acres_affected":3600}
{"current_name":"Bandelier National Monument","states":"New Mexico","current_agency":"NPS","action":"Enlarged","date":"1963-05-27","year":"1963","pres_or_congress":"J. Kennedy","acres_affected":2882}
{"current_name":"Bandelier National Monument","states":"New Mexico","current_agency":"NPS","action":"Diminished","acres_affected":3925}
{"current_name":"Acadia National Park","states":"Maine","original_name":"Sieur de Monts National Monument","current_agency":"NPS","action":"Established","date":"1916-07-08","year":"1916","pres_or_congress":"W. Wilson","acres_affected":5000}
{"current_name":"Acadia National Park","states":"Maine","original_name":"Sieur de Monts National Monument","current_agency":"NPS","action":"Redesignated Lafayette NP","date":"1919-02-26","year":"1919","pres_or_congress":"65th Congress"}
{"current_name":"Acadia National Park","states":"Maine","original_name":"Sieur de Monts National Monument","current_agency":"NPS","action":"Redesignated Acadia NP","date":"1930-01-01","year":"1930"}
{"current_name":"Capulin Volcano National Monument","states":"New Mexico","original_name":"Capulin Mountain","current_agency":"NPS","action":"Established","date":"1916-08-09","year":"1916","pres_or_congress":"W. Wilson","acres_affected":640.42}
{"current_name":"Capulin Volcano National Monument","states":"New Mexico","original_name":"Capulin Mountain","current_agency":"NPS","action":"Redesignated Capulin Volcano NM","date":"1933-03-03","year":"1933","pres_or_congress":"H. Hoover"}
{"current_name":"Part of Tongass National Forest","states":"Alaska","original_name":"Old Kasaan","current_agency":"USFS","action":"Established","date":"1916-10-25","year":"1916","pres_or_congress":"W. Wilson","acres_affected":43}
{"current_name":"Part of Tongass National Forest","states":"Alaska","original_name":"Old Kasaan","current_agency":"USFS","action":"Transferred to Forest Service","date":"1955-07-26","year":"1955","pres_or_congress":"84th Congress"}
{"current_name":"Crow Flies High Overlook","states":"North Dakota","original_name":"Verendrye National Monument","current_agency":"State of North Dakota","action":"Established","date":"1917-06-29","year":"1917","pres_or_congress":"W. Wilson","acres_affected":253.04}
{"current_name":"Crow Flies High Overlook","states":"North Dakota","original_name":"Verendrye National Monument","current_agency":"State of North Dakota","action":"Transferred to ND","date":"1956-07-30","year":"1956","pres_or_congress":"84th Congress"}
{"current_name":"Casa Grande Ruins National Monument","states":"Arizona","current_agency":"NPS","action":"Established","date":"1918-08-03","year":"1918","pres_or_congress":"W. Wilson","acres_affected":480}
{"current_name":"Katmai National Park and Preserve","states":"Alaska","original_name":"Katmai National Monument","current_agency":"NPS","action":"Established","date":"1918-09-24","year":"1918","pres_or_congress":"W. Wilson","acres_affected":1088000}
{"current_name":"Katmai National Park and Preserve","states":"Alaska","original_name":"Katmai National Monument","current_agency":"NPS","action":"Enlarged","date":"1931-04-24","year":"1931","pres_or_congress":"H. Hoover"}
{"current_name":"Katmai National Park and Preserve","states":"Alaska","original_name":"Katmai National Monument","current_agency":"NPS","action":"Restrictions Modified.","date":"1936-06-15","year":"1936","pres_or_congress":"F. D. Roosevelt"}
{"current_name":"Katmai National Park and Preserve","states":"Alaska","original_name":"Katmai National Monument","current_agency":"NPS","action":"Enlarged","date":"1942-08-04","year":"1942","pres_or_congress":"F. D. Roosevelt"}
{"current_name":"Katmai National Park and Preserve","states":"Alaska","original_name":"Katmai National Monument","current_agency":"NPS","action":"Enlarged","date":"1969-01-20","year":"1969","pres_or_congress":"L. Johnson","acres_affected":94547}
{"current_name":"Katmai National Park and Preserve","states":"Alaska","original_name":"Katmai National Monument","current_agency":"NPS","action":"Enlarged","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":1370000}
{"current_name":"Katmai National Park and Preserve","states":"Alaska","original_name":"Katmai National Monument","current_agency":"NPS","action":"Redesignated NP&P","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Scotts Bluff National Monument","states":"Nebraska","current_agency":"NPS","action":"Established","date":"1919-12-12","year":"1919","pres_or_congress":"W. Wilson","acres_affected":2053.83}
{"current_name":"Scotts Bluff National Monument","states":"Nebraska","current_agency":"NPS","action":"Enlarged","date":"1932-06-01","year":"1932","pres_or_congress":"H. Hoover"}
{"current_name":"Scotts Bluff National Monument","states":"Nebraska","current_agency":"NPS","action":"Enlarged","date":"1940-03-29","year":"1940","pres_or_congress":"F. D. Roosevelt","acres_affected":53.34}
{"current_name":"Yucca House National Monument","states":"Colorado","current_agency":"NPS","action":"Established","date":"1919-12-19","year":"1919","pres_or_congress":"W. Wilson","acres_affected":9.6}
{"current_name":"Great Basin National Park","states":"Nevada","original_name":"Lehman Caves National Moument","current_agency":"NPS","action":"Established","date":"1922-01-24","year":"1922","pres_or_congress":"W. Harding","acres_affected":593.03}
{"current_name":"Great Basin National Park","states":"Nevada","original_name":"Lehman Caves National Moument","current_agency":"NPS","action":"Incorporated into Great Basin NP","date":"1986-10-27","year":"1986","pres_or_congress":"99th Congress"}
{"current_name":"Timpanogos Cave National Monument","states":"Utah","current_agency":"NPS","action":"Established","date":"1922-10-14","year":"1922","pres_or_congress":"W. Harding","acres_affected":250}
{"current_name":"Timpanogos Cave National Monument","states":"Utah","current_agency":"NPS","action":"Boundaries Confirmed","date":"1962-03-27","year":"1962","pres_or_congress":"J. Kennedy"}
{"current_name":"Fossil Cycad National Monument","states":"South Dakota","current_agency":"BLM","action":"Established","date":"1922-10-21","year":"1922","pres_or_congress":"W. Harding","acres_affected":320}
{"current_name":"Fossil Cycad National Monument","states":"South Dakota","current_agency":"BLM","action":"Transferred to BLM","date":"1956-08-01","year":"1956","pres_or_congress":"84th Congress"}
{"current_name":"Aztec Ruin National Monument","states":"New Mexico","current_agency":"NPS","action":"Established","date":"1923-01-24","year":"1923","pres_or_congress":"W. Harding","acres_affected":4.6}
{"current_name":"Aztec Ruin National Monument","states":"New Mexico","current_agency":"NPS","action":"Enlarged","date":"1928-07-02","year":"1928","pres_or_congress":"C. Coolidge","acres_affected":12.6}
{"current_name":"Aztec Ruin National Monument","states":"New Mexico","current_agency":"NPS","action":"Enlarged","date":"1930-12-19","year":"1930","pres_or_congress":"H. Hoover","acres_affected":6.8788}
{"current_name":"Aztec Ruin National Monument","states":"New Mexico","current_agency":"NPS","action":"Enlarged","date":"1948-05-27","year":"1948","pres_or_congress":"H. Truman","acres_affected":1.255}
{"current_name":"Hovenweep National Monument","states":"Utah, Colorado","current_agency":"NPS","action":"Established","date":"1923-03-02","year":"1923","pres_or_congress":"W. Harding","acres_affected":285.8}
{"current_name":"Hovenweep National Monument","states":"Utah, Colorado","current_agency":"NPS","action":"Enlarged","date":"1951-04-26","year":"1951","pres_or_congress":"H. Truman","acres_affected":80}
{"current_name":"Hovenweep National Monument","states":"Utah, Colorado","current_agency":"NPS","action":"Enlarged","date":"1952-11-20","year":"1952","pres_or_congress":"H. Truman","acres_affected":81.02}
{"current_name":"Hovenweep National Monument","states":"Utah, Colorado","current_agency":"NPS","action":"Diminished","date":"1956-04-06","year":"1956","pres_or_congress":"D. Eisenhower","acres_affected":40}
{"current_name":"Hovenweep National Monument","states":"Utah, Colorado","current_agency":"NPS","action":"Enlarged, administered by Canyonlands NP","acres_affected":40}
{"current_name":"Hopewell Culture National Historical Park","states":"Ohio","original_name":"Mound City Group National Monument","current_agency":"NPS","action":"Established","date":"1923-03-02","year":"1923","pres_or_congress":"W. Harding","acres_affected":57}
{"current_name":"Hopewell Culture National Historical Park","states":"Ohio","original_name":"Mound City Group National Monument","current_agency":"NPS","action":"Redesignated Hopewell Culture NHP","date":"1992-05-27","year":"1992","pres_or_congress":"102d Congress"}
{"current_name":"Pipe Spring National Monument","states":"Arizona","current_agency":"NPS","action":"Established","date":"1923-05-31","year":"1923","pres_or_congress":"W. Harding","acres_affected":40}
{"current_name":"Bryce Canyon National Park","states":"Utah","original_name":"Bryce Canyon National Monument","current_agency":"NPS","action":"Established","date":"1923-06-08","year":"1923","pres_or_congress":"W. Harding","acres_affected":7440}
{"current_name":"Bryce Canyon National Park","states":"Utah","original_name":"Bryce Canyon National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1924-06-07","year":"1924","pres_or_congress":"68th Congress"}
{"current_name":"Carlsbad Caverns National Park","states":"New Mexico","original_name":"Carlsbad Cave National Monument","current_agency":"NPS","action":"Established","date":"1923-10-25","year":"1923","pres_or_congress":"C. Coolidge","acres_affected":719.22}
{"current_name":"Carlsbad Caverns National Park","states":"New Mexico","original_name":"Carlsbad Cave National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1930-05-14","year":"1930","pres_or_congress":"71st Congress"}
{"current_name":"Chiricahua National Monument","states":"Arizona","current_agency":"NPS","action":"Established","date":"1924-04-18","year":"1924","pres_or_congress":"C. Coolidge","acres_affected":3655.12}
{"current_name":"Chiricahua National Monument","states":"Arizona","current_agency":"NPS","action":"Enlarged","date":"1938-06-10","year":"1938","pres_or_congress":"F. D. Roosevelt","acres_affected":6407}
{"current_name":"Craters of the Moon National Monument","states":"Idaho","current_agency":"NPS, BLM","action":"Established","date":"1924-05-02","year":"1924","pres_or_congress":"C. Coolidge","acres_affected":22651.8}
{"current_name":"Craters of the Moon National Monument","states":"Idaho","current_agency":"NPS, BLM","action":"Enlarged","date":"1928-07-23","year":"1928","pres_or_congress":"C. Coolidge","acres_affected":26240}
{"current_name":"Craters of the Moon National Monument","states":"Idaho","current_agency":"NPS, BLM","action":"Enlarged","date":"1930-07-09","year":"1930","pres_or_congress":"H. Hoover"}
{"current_name":"Craters of the Moon National Monument","states":"Idaho","current_agency":"NPS, BLM","action":"Diminished","date":"1941-07-18","year":"1941","pres_or_congress":"F. D. Roosevelt"}
{"current_name":"Craters of the Moon National Monument","states":"Idaho","current_agency":"NPS, BLM","action":"Enlarged","date":"1962-11-19","year":"1962","pres_or_congress":"J. Kennedy","acres_affected":5360}
{"current_name":"Craters of the Moon National Monument","states":"Idaho","current_agency":"NPS, BLM","action":"Enlarged under BLM","date":"2000-11-09","year":"2000","pres_or_congress":"W. Clinton","acres_affected":661287}
{"current_name":"Statue of Liberty National Monument","states":"New York","original_name":"Fort Wood","current_agency":"NPS","action":"Established","date":"1924-10-15","year":"1924","pres_or_congress":"C. Coolidge","acres_affected":2.5}
{"current_name":"Statue of Liberty National Monument","states":"New York","original_name":"Fort Wood","current_agency":"NPS","action":"Enlarged","date":"1937-09-07","year":"1937","pres_or_congress":"F. D. Roosevelt","acres_affected":7.88}
{"current_name":"Statue of Liberty National Monument","states":"New York","original_name":"Fort Wood","current_agency":"NPS","action":"Enlarged, redesignated Statue of Liberty NM","date":"1965-05-11","year":"1965","pres_or_congress":"L. Johnson","acres_affected":48}
{"current_name":"Castle Pinckney","states":"South Carolina","current_agency":"State of South Carolina","action":"Established","date":"1924-10-15","year":"1924","pres_or_congress":"C. Coolidge","acres_affected":3.5}
{"current_name":"Castle Pinckney","states":"South Carolina","current_agency":"State of South Carolina","action":"Transferred to SC","date":"1956-03-29","year":"1956","pres_or_congress":"84th Congress"}
{"current_name":"Fort Pulaski National Monument","states":"Georgia","current_agency":"NPS","action":"Established","date":"1924-10-15","year":"1924","pres_or_congress":"C. Coolidge","acres_affected":20}
{"current_name":"Fort Pulaski National Monument","states":"Georgia","current_agency":"NPS","action":"Enlarged","date":"1958-08-14","year":"1958","pres_or_congress":"D. Eisenhower","acres_affected":2.5}
{"current_name":"Castillo de San Marcos National Monument","states":"Florida","original_name":"Fort Marion","current_agency":"NPS","action":"Established","date":"1924-10-15","year":"1924","pres_or_congress":"C. Coolidge","acres_affected":18.51}
{"current_name":"Castillo de San Marcos National Monument","states":"Florida","original_name":"Fort Marion","current_agency":"NPS","action":"Redesignated Castillo San Marcos NM","date":"1942-06-05","year":"1942","pres_or_congress":"57th Congress"}
{"current_name":"Fort Matanzas National Monument","states":"Florida","current_agency":"NPS","action":"Established","date":"1924-10-15","year":"1924","pres_or_congress":"C. Coolidge","acres_affected":1}
{"current_name":"Fort Matanzas National Monument","states":"Florida","current_agency":"NPS","action":"Enlarged","date":"1935-01-09","year":"1935","pres_or_congress":"F. D. Roosevelt","acres_affected":88}
{"current_name":"Fort Matanzas National Monument","states":"Florida","current_agency":"NPS","action":"Enlarged","date":"1948-03-24","year":"1948","pres_or_congress":"H. Truman","acres_affected":209.42}
{"current_name":"Wupatki National Monument","states":"Arizona","current_agency":"NPS","action":"Established","date":"1924-12-09","year":"1924","pres_or_congress":"C. Coolidge","acres_affected":2234.1}
{"current_name":"Wupatki National Monument","states":"Arizona","current_agency":"NPS","action":"Enlarged","date":"1937-07-09","year":"1937","pres_or_congress":"F. D. Roosevelt","acres_affected":33631.2}
{"current_name":"Wupatki National Monument","states":"Arizona","current_agency":"NPS","action":"Diminished","date":"1941-01-22","year":"1941","pres_or_congress":"F. D. Roosevelt","acres_affected":52.27}
{"current_name":"Natchez Trace National Scenic Trail","states":"Tennessee","original_name":"Meriwether Lewis National Monument","current_agency":"NPS","action":"Established","date":"1925-02-06","year":"1925","pres_or_congress":"C. Coolidge","acres_affected":50}
{"current_name":"Natchez Trace National Scenic Trail","states":"Tennessee","original_name":"Meriwether Lewis National Monument","current_agency":"NPS","action":"Enlarged","date":"1927-12-06","year":"1927","pres_or_congress":"C. Coolidge","acres_affected":100}
{"current_name":"Natchez Trace National Scenic Trail","states":"Tennessee","original_name":"Meriwether Lewis National Monument","current_agency":"NPS","action":"Included in the Natchez Trace Parkway, now Natchez Trace National Scenic Trail","date":"1961-08-10","year":"1961"}
{"current_name":"Glacier Bay National Park and Preserve","states":"Alaska","original_name":"Glacier Bay National Monument","current_agency":"NPS","action":"Established","date":"1925-02-26","year":"1925","pres_or_congress":"C. Coolidge","acres_affected":1379315.58}
{"current_name":"Glacier Bay National Park and Preserve","states":"Alaska","original_name":"Glacier Bay National Monument","current_agency":"NPS","action":"Enlarged","date":"1939-04-18","year":"1939","pres_or_congress":"F. D. Roosevelt","acres_affected":904960}
{"current_name":"Glacier Bay National Park and Preserve","states":"Alaska","original_name":"Glacier Bay National Monument","current_agency":"NPS","action":"Diminished","date":"1955-03-31","year":"1955","pres_or_congress":"D. Eisenhower","acres_affected":4193}
{"current_name":"Glacier Bay National Park and Preserve","states":"Alaska","original_name":"Glacier Bay National Monument","current_agency":"NPS","action":"Diminished","acres_affected":24925}
{"current_name":"Glacier Bay National Park and Preserve","states":"Alaska","original_name":"Glacier Bay National Monument","current_agency":"NPS","action":"Enlarged","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":550000}
{"current_name":"Glacier Bay National Park and Preserve","states":"Alaska","original_name":"Glacier Bay National Monument","current_agency":"NPS","action":"Redesignated NP&P","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Part of Old Fort Niagara State Park","states":"New York","original_name":"Father Millet Cross","current_agency":"State of New York","action":"Established","date":"1925-09-05","year":"1925","pres_or_congress":"C. Coolidge","acres_affected":0.0074}
{"current_name":"Part of Old Fort Niagara State Park","states":"New York","original_name":"Father Millet Cross","current_agency":"State of New York","action":"Transferred to NY","date":"1949-09-07","year":"1949","pres_or_congress":"81st Congress"}
{"current_name":"Part of Old Fort Niagara State Park","states":"New York","original_name":"Father Millet Cross","current_agency":"State of New York","action":"Now part of Old Fort Niagara State Park"}
{"current_name":"Lava Beds National Monument","states":"California","current_agency":"NPS","action":"Established","date":"1925-11-21","year":"1925","pres_or_congress":"C. Coolidge","acres_affected":45589.92}
{"current_name":"Lava Beds National Monument","states":"California","current_agency":"NPS","action":"Enlarged","date":"1951-04-27","year":"1951","pres_or_congress":"H. Truman","acres_affected":211.13}
{"current_name":"Arches National Park","states":"Utah","original_name":"Arches National Monument","current_agency":"NPS","action":"Established","date":"1929-04-12","year":"1929","pres_or_congress":"H. Hoover","acres_affected":4520}
{"current_name":"Arches National Park","states":"Utah","original_name":"Arches National Monument","current_agency":"NPS","action":"Enlarged","date":"1938-11-25","year":"1938","pres_or_congress":"F. D. Roosevelt","acres_affected":29160}
{"current_name":"Arches National Park","states":"Utah","original_name":"Arches National Monument","current_agency":"NPS","action":"Enlarged","date":"1960-07-22","year":"1960","pres_or_congress":"D. Eisenhower","acres_affected":480}
{"current_name":"Arches National Park","states":"Utah","original_name":"Arches National Monument","current_agency":"NPS","action":"Diminished","date":"1960-07-22","year":"1960","pres_or_congress":"D. Eisenhower","acres_affected":720}
{"current_name":"Arches National Park","states":"Utah","original_name":"Arches National Monument","current_agency":"NPS","action":"Enlarged","date":"1969-01-20","year":"1969","pres_or_congress":"L. Johnson","acres_affected":48943}
{"current_name":"Arches National Park","states":"Utah","original_name":"Arches National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1971-11-12","year":"1971","pres_or_congress":"92d Congress"}
{"current_name":"Part of White River National Forest","states":"Colorado","original_name":"Holy Cross National Monument","current_agency":"USFS","action":"Established","date":"1929-05-11","year":"1929","pres_or_congress":"H. Hoover","acres_affected":1392}
{"current_name":"Part of White River National Forest","states":"Colorado","original_name":"Holy Cross National Monument","current_agency":"USFS","action":"Redesignated under Forest Service","date":"1950-08-03","year":"1950","pres_or_congress":"81st Congress"}
{"current_name":"Sunset Crater Volcano National Monument","states":"Arizona","original_name":"Sunset Crater National Monument","current_agency":"NPS","action":"Established","date":"1930-05-26","year":"1930","pres_or_congress":"H. Hoover","acres_affected":3040}
{"current_name":"Sunset Crater Volcano National Monument","states":"Arizona","original_name":"Sunset Crater National Monument","current_agency":"NPS","action":"Redesignated Sunset Crater Volcano NM","date":"1990-11-16","year":"1990","pres_or_congress":"101st Congress"}
{"current_name":"Great Sand Dunes National Park and Preserve","states":"Colorado","original_name":"Great Sand Dunes National Monument","current_agency":"NPS","action":"Established","date":"1932-03-17","year":"1932","pres_or_congress":"H. Hoover","acres_affected":35528.36}
{"current_name":"Great Sand Dunes National Park and Preserve","states":"Colorado","original_name":"Great Sand Dunes National Monument","current_agency":"NPS","action":"Resurveyed & Modified","date":"1946-03-12","year":"1946","pres_or_congress":"H. Truman"}
{"current_name":"Great Sand Dunes National Park and Preserve","states":"Colorado","original_name":"Great Sand Dunes National Monument","current_agency":"NPS","action":"Enlarged","date":"1956-06-07","year":"1956","pres_or_congress":"D. Eisenhower","acres_affected":960}
{"current_name":"Great Sand Dunes National Park and Preserve","states":"Colorado","original_name":"Great Sand Dunes National Monument","current_agency":"NPS","action":"Diminished","acres_affected":9880}
{"current_name":"Great Sand Dunes National Park and Preserve","states":"Colorado","original_name":"Great Sand Dunes National Monument","current_agency":"NPS","action":"Renamed National Park & Preserve","date":"2000-11-22","year":"2000","pres_or_congress":"106th Congress"}
{"current_name":"Grand Canyon National Park","states":"Arizona","original_name":"Grand Canyon \"II\"","current_agency":"NPS","action":"Established","date":"1932-12-22","year":"1932","pres_or_congress":"H. Hoover","acres_affected":273145}
{"current_name":"Grand Canyon National Park","states":"Arizona","original_name":"Grand Canyon \"II\"","current_agency":"NPS","action":"Diminished","date":"1940-04-04","year":"1940","pres_or_congress":"F. D. Roosevelt","acres_affected":71854}
{"current_name":"Grand Canyon National Park","states":"Arizona","original_name":"Grand Canyon \"II\"","current_agency":"NPS","action":"Redesignated Grand Canyon NP","date":"1975-01-03","year":"1975","pres_or_congress":"93d Congress"}
{"current_name":"White Sands National Monument","states":"New Mexico","current_agency":"NPS","action":"Established","date":"1933-01-18","year":"1933","pres_or_congress":"H. Hoover","acres_affected":131486.84}
{"current_name":"White Sands National Monument","states":"New Mexico","current_agency":"NPS","action":"Enlarged","date":"1934-11-28","year":"1934","pres_or_congress":"F. D. Roosevelt","acres_affected":158.91}
{"current_name":"White Sands National Monument","states":"New Mexico","current_agency":"NPS","action":"Diminished","date":"1938-08-29","year":"1938","pres_or_congress":"F. D. Roosevelt"}
{"current_name":"White Sands National Monument","states":"New Mexico","current_agency":"NPS","action":"Enlarged","date":"1953-06-24","year":"1953","pres_or_congress":"D. Eisenhower","acres_affected":478.53}
{"current_name":"White Sands National Monument","states":"New Mexico","current_agency":"NPS","action":"Enlarged","date":"1978-11-10","year":"1978","pres_or_congress":"95th Congress","acres_affected":760}
{"current_name":"Death Valley National Park","states":"California, Nevada","original_name":"Death Valley National Monument","current_agency":"NPS","action":"Established","date":"1933-02-11","year":"1933","pres_or_congress":"H. Hoover","acres_affected":848581.36}
{"current_name":"Death Valley National Park","states":"California, Nevada","original_name":"Death Valley National Monument","current_agency":"NPS","action":"Enlarged","date":"1937-03-26","year":"1937","pres_or_congress":"F. D. Roosevelt","acres_affected":305920}
{"current_name":"Death Valley National Park","states":"California, Nevada","original_name":"Death Valley National Monument","current_agency":"NPS","action":"Enlarged","date":"1952-01-17","year":"1952","pres_or_congress":"H. Truman","acres_affected":40}
{"current_name":"Death Valley National Park","states":"California, Nevada","original_name":"Death Valley National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1994-10-31","year":"1994","pres_or_congress":"103d Congress"}
{"current_name":"Saguaro National Park","states":"Arizona","original_name":"Saguaro National Monument","current_agency":"NPS","action":"Established","date":"1933-03-01","year":"1933","pres_or_congress":"H. Hoover","acres_affected":53510.08}
{"current_name":"Saguaro National Park","states":"Arizona","original_name":"Saguaro National Monument","current_agency":"NPS","action":"Enlarged","date":"1961-11-15","year":"1961","pres_or_congress":"J. Kennedy","acres_affected":15360}
{"current_name":"Saguaro National Park","states":"Arizona","original_name":"Saguaro National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1994-10-14","year":"1994","pres_or_congress":"103d Congress"}
{"current_name":"Black Canyon of the Gunnison National Park","states":"Colorado","original_name":"Black Canyon of the Gunnison National Monument","current_agency":"NPS","action":"Established","date":"1933-03-02","year":"1933","pres_or_congress":"H. Hoover","acres_affected":10287.95}
{"current_name":"Black Canyon of the Gunnison National Park","states":"Colorado","original_name":"Black Canyon of the Gunnison National Monument","current_agency":"NPS","action":"Enlarged","date":"1938-05-16","year":"1938","pres_or_congress":"F. D. Roosevelt","acres_affected":100}
{"current_name":"Black Canyon of the Gunnison National Park","states":"Colorado","original_name":"Black Canyon of the Gunnison National Monument","current_agency":"NPS","action":"Enlarged","date":"1939-10-28","year":"1939","pres_or_congress":"F. D. Roosevelt","acres_affected":2760}
{"current_name":"Black Canyon of the Gunnison National Park","states":"Colorado","original_name":"Black Canyon of the Gunnison National Monument","current_agency":"NPS","action":"Diminished","date":"1960-04-08","year":"1960","pres_or_congress":"D. Eisenhower","acres_affected":470}
{"current_name":"Black Canyon of the Gunnison National Park","states":"Colorado","original_name":"Black Canyon of the Gunnison National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1999-01-06","year":"1999","pres_or_congress":"103d Congress"}
{"current_name":"Cedar Breaks National Monument","states":"Utah","current_agency":"NPS","action":"Established","date":"1933-08-22","year":"1933","pres_or_congress":"F. D. Roosevelt","acres_affected":5701.39}
{"current_name":"Dry Tortugas National Park","states":"Florida","original_name":"Fort Jefferson National Monument","current_agency":"NPS","action":"Established","date":"1935-01-04","year":"1935","pres_or_congress":"F. D. Roosevelt","acres_affected":47125}
{"current_name":"Dry Tortugas National Park","states":"Florida","original_name":"Fort Jefferson National Monument","current_agency":"NPS","action":"Redesignated Dry Tortugas NP","date":"1992-10-26","year":"1992","pres_or_congress":"102d Congress"}
{"current_name":"Joshua Tree National Park","states":"California","original_name":"Joshua Tree National Monument","current_agency":"NPS","action":"Established","date":"1936-08-10","year":"1936","pres_or_congress":"F. D. Roosevelt","acres_affected":825340}
{"current_name":"Joshua Tree National Park","states":"California","original_name":"Joshua Tree National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1994-10-31","year":"1994","pres_or_congress":"103d Congress"}
{"current_name":"Zion National Park","states":"Utah","original_name":"Zion \"II\"","current_agency":"NPS","action":"Established","date":"1937-01-22","year":"1937","pres_or_congress":"F. D. Roosevelt","acres_affected":49150}
{"current_name":"Zion National Park","states":"Utah","original_name":"Zion \"II\"","current_agency":"NPS","action":"Redesignated NP","date":"1956-07-11","year":"1956","pres_or_congress":"84th Congress"}
{"current_name":"Organ Pipe Cactus National Monument","states":"Arizona","current_agency":"NPS","action":"Established","date":"1937-04-13","year":"1937","pres_or_congress":"F. D. Roosevelt","acres_affected":330690}
{"current_name":"Capitol Reef National Park","states":"Utah","original_name":"Capitol Reef National Monument","current_agency":"NPS","action":"Established","date":"1937-08-02","year":"1937","pres_or_congress":"F. D. Roosevelt","acres_affected":37060}
{"current_name":"Capitol Reef National Park","states":"Utah","original_name":"Capitol Reef National Monument","current_agency":"NPS","action":"Enlarged","date":"1958-07-02","year":"1958","pres_or_congress":"D. Eisenhower","acres_affected":3040}
{"current_name":"Capitol Reef National Park","states":"Utah","original_name":"Capitol Reef National Monument","current_agency":"NPS","action":"Enlarged","date":"1969-01-20","year":"1969","pres_or_congress":"L. Johnson","acres_affected":215056}
{"current_name":"Capitol Reef National Park","states":"Utah","original_name":"Capitol Reef National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1971-12-18","year":"1971","pres_or_congress":"92d Congress"}
{"current_name":"Channel Islands National Park","states":"California","original_name":"Channel Islands National Monument","current_agency":"NPS","action":"Established","date":"1938-04-26","year":"1938","pres_or_congress":"F. D. Roosevelt","acres_affected":1119.98}
{"current_name":"Channel Islands National Park","states":"California","original_name":"Channel Islands National Monument","current_agency":"NPS","action":"Enlarged","date":"1949-02-09","year":"1949","pres_or_congress":"H. Truman","acres_affected":25918.02}
{"current_name":"Channel Islands National Park","states":"California","original_name":"Channel Islands National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1980-05-31","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Fort Laramie National Historic Site","states":"Wyoming","original_name":"Fort Laramie National Monument","current_agency":"NPS","action":"Established","date":"1938-07-16","year":"1938","pres_or_congress":"F. D. Roosevelt","acres_affected":214.41}
{"current_name":"Fort Laramie National Historic Site","states":"Wyoming","original_name":"Fort Laramie National Monument","current_agency":"NPS","action":"Redesignated NHS","date":"1960-04-29","year":"1960","pres_or_congress":"86th Congress"}
{"current_name":"Gulf Islands National Seashore","states":"Florida","original_name":"Santa Rosa Island","current_agency":"NPS","action":"Established","date":"1939-05-17","year":"1939","pres_or_congress":"F. D. Roosevelt","acres_affected":9500}
{"current_name":"Gulf Islands National Seashore","states":"Florida","original_name":"Santa Rosa Island","current_agency":"NPS","action":"Diminished","date":"1945-08-13","year":"1945","pres_or_congress":"H. Truman","acres_affected":4700}
{"current_name":"Gulf Islands National Seashore","states":"Florida","original_name":"Santa Rosa Island","current_agency":"NPS","action":"Incorporated into Gulf Islands NS","date":"1946-07-30","year":"1946","pres_or_congress":"79th Congress"}
{"current_name":"Tuzigoot National Monument","states":"Arizona","current_agency":"NPS","action":"Established","date":"1939-07-25","year":"1939","pres_or_congress":"F. D. Roosevelt","acres_affected":42.67}
{"current_name":"Tuzigoot National Monument","states":"Arizona","current_agency":"NPS","action":"Enlarged","date":"1978-11-10","year":"1978","pres_or_congress":"95th Congress","acres_affected":791}
{"current_name":"Grand Teton National Park","states":"Wyoming","original_name":"Jackson Hole National Monument","current_agency":"NPS","action":"Established","date":"1943-03-15","year":"1943","pres_or_congress":"F. D. Roosevelt","acres_affected":210950}
{"current_name":"Grand Teton National Park","states":"Wyoming","original_name":"Jackson Hole National Monument","current_agency":"NPS","action":"Redesignated Grand Teton NP","date":"1950-09-14","year":"1950","pres_or_congress":"81st Congress"}
{"current_name":"Effigy Mounds National Monument","states":"Iowa","current_agency":"NPS","action":"Established","date":"1949-10-25","year":"1949","pres_or_congress":"H. Truman","acres_affected":1000}
{"current_name":"Thomas Edison National Historical Park","states":"New Jersey","original_name":"Edison Laboratory","current_agency":"NPS","action":"Established","date":"1956-07-14","year":"1956","pres_or_congress":"D. Eisenhower","acres_affected":1.51}
{"current_name":"Thomas Edison National Historical Park","states":"New Jersey","original_name":"Edison Laboratory","current_agency":"NPS","action":"Redesignated NHS","date":"1962-09-05","year":"1962","pres_or_congress":"87th Congress"}
{"current_name":"Thomas Edison National Historical Park","states":"New Jersey","original_name":"Edison Laboratory","current_agency":"NPS","action":"Redesignated Thomas Edison NHP","date":"2009-03-30","year":"2009","pres_or_congress":"111th Congress"}
{"current_name":"Chesapeake and Ohio Canal National Historical Park","states":"Maryland","original_name":"Chesapeake and Ohio Canal National Monument","current_agency":"NPS","action":"Established","date":"1961-01-18","year":"1961","pres_or_congress":"D. Eisenhower","acres_affected":5263.94}
{"current_name":"Chesapeake and Ohio Canal National Historical Park","states":"Maryland","original_name":"Chesapeake and Ohio Canal National Monument","current_agency":"NPS","action":"Redesignated NHP","date":"1971-01-08","year":"1971","pres_or_congress":"91st Congress"}
{"current_name":"Russell Cave National Monument","states":"Alabama","current_agency":"NPS","action":"Established","date":"1961-05-11","year":"1961","pres_or_congress":"J. Kennedy","acres_affected":310.45}
{"current_name":"Buck Island Reef National Monument","states":"Virgin Islands","current_agency":"NPS","action":"Established","date":"1961-12-28","year":"1961","pres_or_congress":"J. Kennedy","acres_affected":850}
{"current_name":"Buck Island Reef National Monument","states":"Virgin Islands","current_agency":"NPS","action":"Enlarged","date":"1975-02-01","year":"1975","pres_or_congress":"G. Ford","acres_affected":30}
{"current_name":"Buck Island Reef National Monument","states":"Virgin Islands","current_agency":"NPS","action":"Amending Description","date":"1975-03-28","year":"1975","pres_or_congress":"G. Ford"}
{"current_name":"Buck Island Reef National Monument","states":"Virgin Islands","current_agency":"NPS","action":"Enlarged","date":"2001-01-17","year":"2001","pres_or_congress":"W. Clinton","acres_affected":17255}
{"current_name":"Grand Canyon National Park","states":"Arizona","original_name":"Marble Canyon National Monument","current_agency":"NPS","action":"Established","date":"1969-01-20","year":"1969","pres_or_congress":"L. Johnson","acres_affected":32546.69}
{"current_name":"Grand Canyon National Park","states":"Arizona","original_name":"Marble Canyon National Monument","current_agency":"NPS","action":"Incorporated into Grand Canyon NP","date":"1975-01-03","year":"1975","pres_or_congress":"93d Congress"}
{"current_name":"Part of Tongass National Forest","states":"Alaska","original_name":"Admiralty Island National Monument","current_agency":"USFS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":1100000}
{"current_name":"Aniakchak National Monument & Preserve","states":"Alaska","original_name":"Aniakchak National Monument","current_agency":"NPS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":350000}
{"current_name":"Aniakchak National Monument & Preserve","states":"Alaska","original_name":"Aniakchak National Monument","current_agency":"NPS","action":"Partially Redesignated Preserve","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Becharof National Wildlife Refuge","states":"Alaska","current_agency":"FWS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":1200000}
{"current_name":"Bering Land Bridge National Preserve","states":"Alaska","original_name":"Bering Land Bridge National Monument","current_agency":"NPS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":2590000}
{"current_name":"Bering Land Bridge National Preserve","states":"Alaska","original_name":"Bering Land Bridge National Monument","current_agency":"NPS","action":"Redesignated National Preserve","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Cape Krusenstern National Monument","states":"Alaska","current_agency":"NPS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":560000}
{"current_name":"Denali National Park","states":"Alaska","original_name":"Denali National Park and Preserve","current_agency":"NPS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":3890000}
{"current_name":"Denali National Park","states":"Alaska","original_name":"Denali National Park and Preserve","current_agency":"NPS","action":"Redesignated NP","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Gates of the Arctic National Park and Preserve","states":"Alaska","original_name":"Gates of the Arctic National Monument","current_agency":"NPS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":8220000}
{"current_name":"Gates of the Arctic National Park and Preserve","states":"Alaska","original_name":"Gates of the Arctic National Monument","current_agency":"NPS","action":"Redesignated NP&P","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Kenai Fjords National Park","states":"Alaska","original_name":"Kenai Fjords National Monument","current_agency":"NPS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":570000}
{"current_name":"Kenai Fjords National Park","states":"Alaska","original_name":"Kenai Fjords National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Kobuk Valley National Park","states":"Alaska","original_name":"Kobuk Valley National Monument","current_agency":"NPS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":1710000}
{"current_name":"Kobuk Valley National Park","states":"Alaska","original_name":"Kobuk Valley National Monument","current_agency":"NPS","action":"Redesignated NP","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Lake Clark National Park and Preserve","states":"Alaska","original_name":"Lake Clark National Monument","current_agency":"NPS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":2500000}
{"current_name":"Lake Clark National Park and Preserve","states":"Alaska","original_name":"Lake Clark National Monument","current_agency":"NPS","action":"Redesignated National Park & Preserve","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Part of Tongass National Forest","states":"Alaska","original_name":"Misty Fjords National Monument","current_agency":"USFS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":2285000}
{"current_name":"Part of Tongass National Forest","states":"Alaska","original_name":"Misty Fjords National Monument","current_agency":"USFS","action":"Redesignated within Tongass National Forest","date":"1980-12-02","year":"1980"}
{"current_name":"Noatak National Preserve","states":"Alaska","original_name":"Noatak National Monument","current_agency":"NPS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":5880000}
{"current_name":"Noatak National Preserve","states":"Alaska","original_name":"Noatak National Monument","current_agency":"NPS","action":"Redesignated Preserve","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Wrangall-St. Elias National Park and Preserve","states":"Alaska","original_name":"Wrangall-St. Elias National Monument","current_agency":"NPS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":10950000}
{"current_name":"Wrangall-St. Elias National Park and Preserve","states":"Alaska","original_name":"Wrangall-St. Elias National Monument","current_agency":"NPS","action":"Redesignated NP&P","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Yukon-Charley Rivers National Preserve","states":"Alaska","original_name":"Yukon-Charley Rivers National Monument","current_agency":"NPS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":1720000}
{"current_name":"Yukon-Charley Rivers National Preserve","states":"Alaska","original_name":"Yukon-Charley Rivers National Monument","current_agency":"NPS","action":"Redesignated Preserve","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Yukon Flats National Wildlife Refuge","states":"Alaska","original_name":"Yukon Flats National Monument","current_agency":"FWS","action":"Established","date":"1978-12-01","year":"1978","pres_or_congress":"J. Carter","acres_affected":10600000}
{"current_name":"Yukon Flats National Wildlife Refuge","states":"Alaska","original_name":"Yukon Flats National Monument","current_agency":"FWS","action":"Redesignated National Wildlife Refuge","date":"1980-12-02","year":"1980","pres_or_congress":"96th Congress"}
{"current_name":"Grand Staircase-Escalante National Monument","states":"Utah","current_agency":"BLM","action":"Established","date":"1996-09-18","year":"1996","pres_or_congress":"W. Clinton","acres_affected":1700000}
{"current_name":"Agua Fria National Monument","states":"Arizona","current_agency":"BLM","action":"Established","date":"2000-01-11","year":"2000","pres_or_congress":"W. Clinton","acres_affected":71100}
{"current_name":"California Coastal National Monument","states":"California","current_agency":"BLM","action":"Established (BLM)","date":"2000-01-11","year":"2000","pres_or_congress":"W. Clinton","acres_affected":883}
{"current_name":"California Coastal National Monument","states":"California","current_agency":"BLM","action":"Enlarged","date":"2014-03-11","year":"2014","pres_or_congress":"B. H. Obama","acres_affected":1665}
{"current_name":"California Coastal National Monument","states":"California","current_agency":"BLM","action":"Enlarged","date":"2017-01-12","year":"2017","pres_or_congress":"B. H. Obama","acres_affected":6230}
{"current_name":"Grand Canyon-Parashant National Monument","states":"Arizona","current_agency":"BLM","action":"Established","date":"2000-01-11","year":"2000","pres_or_congress":"W. Clinton","acres_affected":1014000}
{"current_name":"Part of Sequoia National Forest","states":"California","original_name":"Giant Sequoia National Monument","current_agency":"USFS","action":"Established","date":"2000-04-15","year":"2000","pres_or_congress":"W. Clinton","acres_affected":327769}
{"current_name":"Canyon of the Ancients National Monument","states":"Colorado","current_agency":"BLM","action":"Established","date":"2000-06-09","year":"2000","pres_or_congress":"W. Clinton","acres_affected":164000}
{"current_name":"Cascade-Siskiyou National Monument","states":"Oregon","current_agency":"BLM","action":"Established (BLM)","date":"2000-06-09","year":"2000","pres_or_congress":"W. Clinton","acres_affected":52000}
{"current_name":"Cascade-Siskiyou National Monument","states":"Oregon","current_agency":"BLM","action":"Enlarged","date":"2017-01-12","year":"2017","pres_or_congress":"B. H. Obama","acres_affected":48000}
{"current_name":"Hanford Reach National Monument","states":"Washington","current_agency":"FWS","action":"Established","date":"2000-06-09","year":"2000","pres_or_congress":"W. Clinton","acres_affected":195000}
{"current_name":"Ironwood Forest National Monument","states":"Arizona","current_agency":"BLM","action":"Established","date":"2000-06-09","year":"2000","pres_or_congress":"W. Clinton","acres_affected":128917}
{"current_name":"President Lincoln and Soldier's Home National Monument","states":"Washington, DC","current_agency":"NPS","action":"Established","date":"2000-07-07","year":"2000","pres_or_congress":"W. Clinton","acres_affected":2.3}
{"current_name":"Vermillion Cliffs National Monument","states":"Arizona","current_agency":"BLM","action":"Established","date":"2000-11-09","year":"2000","pres_or_congress":"W. Clinton","acres_affected":293000}
{"current_name":"Carrizo Plain National Monument","states":"California","current_agency":"BLM","action":"Established","date":"2001-01-17","year":"2001","pres_or_congress":"W. Clinton","acres_affected":204107}
{"current_name":"Kasha-Katuwe Tent Rocks National Monument","states":"New Mexico","current_agency":"BLM","action":"Established","date":"2001-01-17","year":"2001","pres_or_congress":"W. Clinton","acres_affected":4148}
{"current_name":"Minidoka National Historic Site","states":"Idaho","original_name":"Minidoka Internment National Monument","current_agency":"NPS","action":"Established","date":"2001-01-17","year":"2001","pres_or_congress":"W. Clinton","acres_affected":72.75}
{"current_name":"Minidoka National Historic Site","states":"Idaho","original_name":"Minidoka Internment National Monument","current_agency":"NPS","action":"Redesignated NHS","date":"2008-05-08","year":"2008","pres_or_congress":"G.W. Bush"}
{"current_name":"Pompeys Pillar National Monument","states":"Montana","current_agency":"BLM","action":"Established","date":"2001-01-17","year":"2001","pres_or_congress":"W. Clinton","acres_affected":51}
{"current_name":"Sonoran Desert National Monument","states":"Arizona","current_agency":"BLM","action":"Established","date":"2001-01-17","year":"2001","pres_or_congress":"W. Clinton","acres_affected":486149}
{"current_name":"Upper Missouri River Breaks National Monument","states":"Montana","current_agency":"BLM","action":"Established","date":"2001-01-17","year":"2001","pres_or_congress":"W. Clinton","acres_affected":377346}
{"current_name":"Virgin Islands Coral Reef National Monument","states":"Virgin Islands","current_agency":"NPS","action":"Established","date":"2001-01-17","year":"2001","pres_or_congress":"W. Clinton","acres_affected":12708}
{"current_name":"Governors Island National Monument","states":"New York","current_agency":"NPS","action":"Established","date":"2001-01-19","year":"2001","pres_or_congress":"W. Clinton","acres_affected":20}
{"current_name":"Governors Island National Monument","states":"New York","current_agency":"NPS","action":"Reaffirmed","date":"2003-01-31","year":"2003","pres_or_congress":"G. W. Bush","acres_affected":22}
{"current_name":"African Burial Ground National Monument","states":"New York","current_agency":"NPS","action":"Established","date":"2006-02-27","year":"2006","pres_or_congress":"G. W. Bush","acres_affected":0.345}
{"current_name":"Papahānaumokuākea Marine National Monument","states":"Hawaii","original_name":"Northwestern Hawaiian Islands National Monument","current_agency":"FWS, NOAA","action":"Established (FWS and NOAA)","date":"2006-06-15","year":"2006","pres_or_congress":"G. W. Bush","acres_affected":140000}
{"current_name":"Papahānaumokuākea Marine National Monument","states":"Hawaii","original_name":"Northwestern Hawaiian Islands National Monument","current_agency":"FWS, NOAA","action":"Redesignated Papahānaumokuākea MNM","date":"2007-02-28","year":"2007","pres_or_congress":"G.W. Bush"}
{"current_name":"Papahānaumokuākea Marine National Monument","states":"Hawaii","original_name":"Northwestern Hawaiian Islands National Monument","current_agency":"FWS, NOAA","action":"Enlarged","date":"2016-08-26","year":"2016","pres_or_congress":"B.H. Obama","acres_affected":442781}
{"current_name":"World War II Valor in the Pacific National Monument","states":"Hawaii","current_agency":"NPS, FWS","action":"Established","date":"2008-12-05","year":"2008","pres_or_congress":"G. W. Bush","acres_affected":6310}
{"current_name":"Rose Atoll National Monument","states":"American Samoa","current_agency":"NOAA","action":"Established","date":"2009-01-06","year":"2009","pres_or_congress":"G. W. Bush","acres_affected":13451}
{"current_name":"Pacific Remote Islands National Monument","states":"Hawaii","current_agency":"FWS, NOAA","action":"Established","date":"2009-01-06","year":"2009","pres_or_congress":"G. W. Bush","acres_affected":86888}
{"current_name":"Pacific Remote Islands National Monument","states":"Hawaii","current_agency":"FWS, NOAA","action":"Enlarged","date":"2014-09-25","year":"2014","pres_or_congress":"B. H. Obama","acres_affected":408301}
{"current_name":"Mariana's Trench National Monument","states":"Northern Mariana Islands, Guam","current_agency":"NOAA","action":"Established","date":"2009-01-06","year":"2009","pres_or_congress":"G. W. Bush","acres_affected":95216}
{"current_name":"Fort Monroe National Monument","states":"Virginia","current_agency":"NPS","action":"Established","date":"2011-11-01","year":"2011","pres_or_congress":"B. H. Obama","acres_affected":325.21}
{"current_name":"Fort Ord National Monument","states":"California","current_agency":"BLM","action":"Established","date":"2012-04-20","year":"2012","pres_or_congress":"B. H. Obama","acres_affected":14651}
{"current_name":"Chimney Rock National Monument","states":"Colorado","current_agency":"USFS","action":"Established","date":"2012-09-21","year":"2012","pres_or_congress":"B. H. Obama","acres_affected":4726}
{"current_name":"Cesar E. Chavez National Monument","states":"California","current_agency":"NPS","action":"Established","date":"2012-10-08","year":"2012","pres_or_congress":"B. H. Obama","acres_affected":10.5}
{"current_name":"San Juan Islands National Monument","states":"Washington","current_agency":"BLM","action":"Established","date":"2013-03-25","year":"2013","pres_or_congress":"B. H. Obama","acres_affected":970}
{"current_name":"Rio Grande del Norte National Monument","states":"New Mexico","current_agency":"BLM","action":"Established","date":"2013-03-25","year":"2013","pres_or_congress":"B. H. Obama","acres_affected":242555}
{"current_name":"Harriet Tubman Underground Railroad National Historical Park","states":"Maryland","current_agency":"NPS, FWS","action":"Established (NPS and FWS)","date":"2013-03-25","year":"2013","pres_or_congress":"B. H. Obama","acres_affected":11750}
{"current_name":"Harriet Tubman Underground Railroad National Historical Park","states":"Maryland","current_agency":"NPS, FWS","action":"Partially redesignated NHP (NPS)","date":"2014-12-19","year":"2014","pres_or_congress":"113th Congress","acres_affected":480}
{"current_name":"First State National Historical Park","states":"Delaware","current_agency":"NPS","action":"Established","date":"2013-03-25","year":"2013","pres_or_congress":"B. H. Obama","acres_affected":1108}
{"current_name":"First State National Historical Park","states":"Delaware","current_agency":"NPS","action":"Redesignated NHP","date":"2014-12-19","year":"2014","pres_or_congress":"113th Congress"}
{"current_name":"Charles Young Buffalo Soldiers Monument","states":"Ohio","current_agency":"NPS","action":"Established","date":"2013-03-25","year":"2013","pres_or_congress":"B. H. Obama","acres_affected":59.65}
{"current_name":"Organ Mountains-Desert Peaks National Monument","states":"New Mexico","current_agency":"BLM","action":"Established","date":"2014-05-21","year":"2014","pres_or_congress":"B. H. Obama","acres_affected":496330}
{"current_name":"San Gabriel Mountains National Monument","states":"California","current_agency":"USFS","action":"Established","date":"2014-10-10","year":"2014","pres_or_congress":"B. H. Obama","acres_affected":346177}
{"current_name":"Honouliuli National Monument","states":"Hawaii","current_agency":"NPS","action":"Established","date":"2015-02-14","year":"2015","pres_or_congress":"B. H. Obama","acres_affected":123}
{"current_name":"Pullman National Monument","states":"Illinois","current_agency":"NPS","action":"Established","date":"2015-02-19","year":"2015","pres_or_congress":"B. H. Obama","acres_affected":0.2397}
{"current_name":"Browns Canyon National Monument","states":"New Mexico","current_agency":"BLM, USFS","action":"Established","date":"2015-02-19","year":"2015","pres_or_congress":"B. H. Obama","acres_affected":21586}
{"current_name":"Berryessa Snow Mountain National Monument","states":"California","current_agency":"USFS","action":"Established","date":"2015-07-10","year":"2015","pres_or_congress":"B. H. Obama","acres_affected":330780}
{"current_name":"Waco Mammoth National Monument","states":"Texas","current_agency":"NPS","action":"Established","date":"2015-07-10","year":"2015","pres_or_congress":"B. H. Obama","acres_affected":7.11}
{"current_name":"Basin and Range National Monument","states":"Nevada","current_agency":"BLM","action":"Established","date":"2015-07-10","year":"2015","pres_or_congress":"B. H. Obama","acres_affected":704000}
{"current_name":"Mojave Trails National Monument","states":"California","current_agency":"BLM","action":"Established","date":"2016-02-12","year":"2016","pres_or_congress":"B. H. Obama","acres_affected":1600000}
{"current_name":"Sand to Snow National Monument","states":"California","current_agency":"USFS","action":"Established","date":"2016-02-12","year":"2016","pres_or_congress":"B. H. Obama","acres_affected":154000}
{"current_name":"Castle Mountains National Monument","states":"California","current_agency":"NPS","action":"Established","date":"2016-02-12","year":"2016","pres_or_congress":"B. H. Obama","acres_affected":20920}
{"current_name":"Belmont-Paul Women's Equality National Monument","states":"Washington, DC","current_agency":"NPS","action":"Established","date":"2016-04-12","year":"2016","pres_or_congress":"B. H. Obama","acres_affected":0.34}
{"current_name":"Stonewall National Monument","states":"New York","current_agency":"NPS","action":"Established","date":"2016-06-24","year":"2016","pres_or_congress":"B. H. Obama","acres_affected":0.12}
{"current_name":"Katahdin Woods and Waters National Monument","states":"Maine","current_agency":"NPS","action":"Established","date":"2016-08-24","year":"2016","pres_or_congress":"B. H. Obama","acres_affected":87563}
{"current_name":"Northeast Canyons and Seamounts Marine National Monument","states":"Massachusetts","current_agency":"NOAA, FWS","action":"Established","date":"2016-09-15","year":"2016","pres_or_congress":"B.H. Obama","acres_affected":4913}
{"current_name":"Bears Ears National Monument","states":"Utah","current_agency":"BLM, USFS","action":"Established","date":"2016-12-28","year":"2016","pres_or_congress":"B. H. Obama","acres_affected":1350000}
{"current_name":"Gold Butte National Monument","states":"Nevada","current_agency":"BLM","action":"Established","date":"2016-12-28","year":"2016","pres_or_congress":"B. H. Obama","acres_affected":300000}
{"current_name":"Birmingham Civil Rights National Monument","states":"Alabama","current_agency":"NPS","action":"Established","date":"2017-01-12","year":"2017","pres_or_congress":"B. H. Obama","acres_affected":0.88}
{"current_name":"Freedom Riders National Monument","states":"Alabama","current_agency":"NPS","action":"Established","date":"2017-01-12","year":"2017","pres_or_congress":"B. H. Obama","acres_affected":5.96}
{"current_name":"Reconstruction Era National Monument","states":"South Carolina","current_agency":"NPS","action":"Established","date":"2017-01-12","year":"2017","pres_or_congress":"B. H. Obama","acres_affected":15.56}