current_name,states,original_name,current_agency,action,date,year,pres_or_congress,acres_affected
Devils Tower National Monument,Wyoming,,NPS,Established,9/24/06,1906,T. Roosevelt,"1,193.91"
El Morro National Monument,New Mexico,,NPS,Established,12/8/06,1906,T. Roosevelt,160
El Morro National Monument,New Mexico,,NPS,Enlarged,6/18/17,1917,W. Wilson,240
Montezuma Castle National Monument,Arizona,,NPS,Established,12/8/06,1906,T. Roosevelt,161.39
Montezuma Castle National Monument,Arizona,,NPS,Enlarged,2/23/37,1937,F. D. Roosevelt,360
Montezuma Castle National Monument,Arizona,,NPS,Enlarged,11/10/78,1978,95th Congress,13
Montezuma Castle National Monument,Arizona,,NPS,Deleted,11/10/78,1978,95th Congress,5
Petrified Forest National Park,Arizona,Petrified Forest National Monument,NPS,Established,12/8/06,1906,T. Roosevelt,"60,776.02"
Petrified Forest National Park,Arizona,Petrified Forest National Monument,NPS,Diminished,7/31/11,1911,W. Taft,"25,625.60"
Petrified Forest National Park,Arizona,Petrified Forest National Monument,NPS,Enlarged,11/14/30,1930,H. Hoover,"11,010"
Petrified Forest National Park,Arizona,Petrified Forest National Monument,NPS,Redesignated NP,3/28/58,1958,85th Congress,
Petrified Forest National Park,Arizona,Petrified Forest National Monument,NPS,Enlarged,11/30/31,1931,H. Hoover,
Petrified Forest National Park,Arizona,Petrified Forest National Monument,NPS,Enlarged,9/23/32,1932,H. Hoover,"53,300"
Chaco Culture National Historical Park,New Mexico,Chaco Canyon National Monument,NPS,Established,3/11/07,1907,T. Roosevelt,"10,643.13"
Chaco Culture National Historical Park,New Mexico,Chaco Canyon National Monument,NPS,Enlarged,1/10/28,1928,C. Coolidge,"21,509.40"
Chaco Culture National Historical Park,New Mexico,Chaco Canyon National Monument,NPS,Redesignated Chaco Culture NHP,12/19/80,1980,96th Congress,
Lassen Volcanic National Park,California,Cinder Cone National Monument,NPS,Established,5/6/07,1907,T. Roosevelt,"5,120"
Lassen Volcanic National Park,California,Cinder Cone National Monument,NPS,Incorporated into Lassen Volcanic NP,8/9/16,1916,64th Congress,
Lassen Volcanic National Park,California,Lassen Volcanic National Monument,NPS,Established,5/6/07,1907,T. Roosevelt,"1,280"
Lassen Volcanic National Park,California,Lassen Volcanic National Monument,NPS,Redesignated Lassen Volcanic NP,8/9/16,1916,64th Congress,
Gila Cliff Dwellings National Monument,New Mexico,,NPS,Established,11/16/07,1907,T. Roosevelt,160
Gila Cliff Dwellings National Monument,New Mexico,,NPS,Enlarged,4/17/62,1962,J. Kennedy,373.25
Tonto National Monument,Arizona,,NPS,Established,12/19/07,1907,T. Roosevelt,640
Tonto National Monument,Arizona,,NPS,Enlarged,4/1/37,1937,F. D. Roosevelt,480
Muir Woods National Monument,California,,NPS,Established,1/9/08,1908,T. Roosevelt,295
Muir Woods National Monument,California,,NPS,Enlarged,9/22/21,1921,W. Harding,128.14
Muir Woods National Monument,California,,NPS,Enlarged,4/5/35,1935,F. D. Roosevelt,1.36
Muir Woods National Monument,California,,NPS,Enlarged,6/26/51,1951,H. Truman,504.271
Muir Woods National Monument,California,,NPS,Enlarged,9/8/59,1959,D. Eisenhower,6.16
Grand Canyon National Park,Arizona,Grand Canyon National Monument,NPS,Established,1/11/08,1908,T. Roosevelt,"808,120"
Grand Canyon National Park,Arizona,Grand Canyon National Monument,NPS,Redesignated Grand Canyon NP,2/26/19,1919,65th Congress,
Pinnacles National Park,California,Pinnacles National Monument,NPS,Established,1/16/08,1908,T. Roosevelt,"1,320"
Pinnacles National Park,California,Pinnacles National Monument,NPS,Enlarged,5/7/23,1923,W. Harding,"2,653.46"
Pinnacles National Park,California,Pinnacles National Monument,NPS,Enlarged,7/2/24,1924,C. Coolidge,"2,980.26"
Pinnacles National Park,California,Pinnacles National Monument,NPS,Enlarged,4/13/31,1931,H. Hoover,"1,926.35"
Pinnacles National Park,California,Pinnacles National Monument,NPS,Enlarged,7/11/33,1933,F. D. Roosevelt,4805
Pinnacles National Park,California,Pinnacles National Monument,NPS,Enlarged,12/5/41,1941,F. D. Roosevelt,"4,589.26"
Pinnacles National Park,California,Pinnacles National Monument,NPS,Enlarged,1/11/00,2000,W. Clinton,"7,900"
Pinnacles National Park,California,Pinnacles National Monument,NPS,Redesignated NP,1/10/13,2013,112th Congress,440
Jewel Cave National Monument,South Dakota,,NPS,Established,2/7/08,1908,T. Roosevelt,"1,274.56"
Natural Bridges National Monument,Utah,,NPS,Established,4/16/08,1908,T. Roosevelt,120
Natural Bridges National Monument,Utah,,NPS,Enlarged,9/25/09,1909,W. Taft,"2,620"
Natural Bridges National Monument,Utah,,NPS,Boundaries Confirmed,2/11/16,1916,W. Wilson,
Natural Bridges National Monument,Utah,,NPS,Enlarged,8/14/62,1962,J. Kennedy,"5,236"
Natural Bridges National Monument,Utah,,NPS,Diminished,,,,320
Lewis and Clark Caverns State Park,Montana,Lewis and Clark Cavern National Monument,State of Montana,Established,5/11/08,1908,T. Roosevelt,160
Lewis and Clark Caverns State Park,Montana,Lewis and Clark Cavern National Monument,State of Montana,Boundaries Confirmed,5/16/11,1911,W. Taft,160
Lewis and Clark Caverns State Park,Montana,Lewis and Clark Cavern National Monument,State of Montana,"Transferred to MT, now a state park",8/24/37,1937,75th Congress,
Tumacacori National Historical Park,Arizona,Tumacacori National Monument,NPS,Established,9/15/08,1908,T. Roosevelt,10
Tumacacori National Historical Park,Arizona,Tumacacori National Monument,NPS,Enlarged,3/28/58,1958,D. Eisenhower,0.15
Tumacacori National Historical Park,Arizona,Tumacacori National Monument,NPS,Enlarged,11/10/78,1978,95th Congress,7
Tumacacori National Historical Park,Arizona,Tumacacori National Monument,NPS,Deleted,11/10/78,1978,95th Congress,0.011
Tumacacori National Historical Park,Arizona,Tumacacori National Monument,NPS,Redesignated NHP,8/6/90,1990,101st Congress,
Part of Rio Grande National Forest,Colorado,Wheeler National Monument,BLM,Established,12/7/08,1908,T. Roosevelt,300
Part of Rio Grande National Forest,Colorado,Wheeler National Monument,BLM,"Transferred to BLM, part of Rio Grande National Forest",8/3/50,1950,81st Congress,
Olympic National Park,Washington,Mount Olympus,NPS,Established,3/2/09,1909,T. Roosevelt,"639,200"
Olympic National Park,Washington,Mount Olympus,NPS,Diminished,4/17/12,1912,W. Taft,160
Olympic National Park,Washington,Mount Olympus,NPS,Diminished,5/11/15,1915,W. Wilson,"313,280"
Olympic National Park,Washington,Mount Olympus,NPS,Diminished,1/7/29,1929,C. Coolidge,640
Olympic National Park,Washington,Mount Olympus,NPS,Redesignated NP,6/29/38,1938,75th Congress,
Navajo National Monument,Arizona,,NPS,Established,3/20/09,1909,W. Taft,360
Navajo National Monument,Arizona,,NPS,Diminished,3/14/12,1912,W. Taft,320
Oregon Caves National Monument and Preserve,Oregon,Oregon Caves National Monument,NPS,Established,7/12/09,1909,W. Taft,465.8
Oregon Caves National Monument and Preserve,Oregon,Oregon Caves National Monument,NPS,Enlarged,11/10/78,1978,95th Congress,8
Oregon Caves National Monument and Preserve,Oregon,Oregon Caves National Monument,NPS,Redesignated NMP,12/19/14,2014,113th Congress,
Zion National Park,Utah,Mukuntu-Weap/Zion National Monument,NPS,Established,7/31/09,1909,W. Taft,"16,000"
Zion National Park,Utah,Mukuntu-Weap/Zion National Monument,NPS,Enlarged & Renamed,3/18/18,1918,W. Wilson,"76,800"
Zion National Park,Utah,Mukuntu-Weap/Zion National Monument,NPS,Redesignated NP,11/19/19,1919,66th Congress,
Spirit Mountain Cave,Wyoming,Shoshone Cavern,BLM,Established,9/21/09,1909,W. Taft,210
Spirit Mountain Cave,Wyoming,Shoshone Cavern,BLM,Transferred to WY,5/17/54,1954,83d Congress,
Salinas Pueblo Missions National Monument,New Mexico,Gran Quivira,NPS,Established,11/1/09,1909,W. Taft,160
Salinas Pueblo Missions National Monument,New Mexico,Gran Quivira,NPS,Enlarged,11/25/19,1919,W. Wilson,240
Salinas Pueblo Missions National Monument,New Mexico,Gran Quivira,NPS,"Abolished, funds available to Salinas NM",12/19/80,1980,96th Congress,
Salinas Pueblo Missions National Monument,New Mexico,Gran Quivira,NPS,Redesignated Salinas Pueblo Missions NM,10/28/88,1988,,
Sitka National Historical Park,Alaska,Sitka National Monument,NPS,Established,3/23/10,1910,W. Taft,57
Sitka National Historical Park,Alaska,Sitka National Monument,NPS,Resurveyed & Enlarged,2/25/52,1952,H. Truman,54.334
Sitka National Historical Park,Alaska,Sitka National Monument,NPS,Redesignated NHP,10/18/72,1972,92d Congress,
Sitka National Historical Park,Alaska,Sitka National Monument,NPS,Deleted,7/30/83,1983,96th Congress,
Rainbow Bridge National Monument,Utah,,NPS,Established,5/30/10,1910,W. Taft,160
Big Hole National Battlefield,Montana,Big Hole Battlefield National Monument,NPS,Established,6/23/10,1910,W. Taft,5
Big Hole National Battlefield,Montana,Big Hole Battlefield National Monument,NPS,Enlarged,6/29/39,1939,F. D. Roosevelt,195
Big Hole National Battlefield,Montana,Big Hole Battlefield National Monument,NPS,Redesignated NB,5/17/63,1963,88th Congress,
Colorado National Monument,Colorado,,NPS,Established,5/24/11,1911,W. Taft,"13,883.06"
Colorado National Monument,Colorado,,NPS,Enlarged,3/3/33,1933,H. Hoover,
Colorado National Monument,Colorado,,NPS,Diminished,8/7/59,1959,D. Eisenhower,211
Colorado National Monument,Colorado,,NPS,Enlarged,,,,120
Devils Postpile National Monument,California,,NPS,Established,7/6/11,1911,W. Taft,798.46
Cabrillo National Monument,California,,NPS,Established,10/14/13,1913,W. Wilson,0.5
Cabrillo National Monument,California,,NPS,Enlarged,2/2/59,1959,D. Eisenhower,80
Cabrillo National Monument,California,,NPS,Enlarged,9/28/74,1974,G. Ford,56.6
Papago Park,Arizona,Papago Saguaro National Monument,State of Arizona,Established,1/31/14,1914,W. Wilson,"2,050.43"
Papago Park,Arizona,Papago Saguaro National Monument,State of Arizona,"Transferred to AZ, now Papago Park",4/7/30,1930,71st Congress,
Dinosaur National Monument,"Utah, Colorado",,NPS,Established,10/4/15,1915,W. Wilson,80
Dinosaur National Monument,"Utah, Colorado",,NPS,Enlarged,7/14/38,1938,F. D. Roosevelt,"203,885"
Walnut Canyon National Monument,Arizona,,NPS,Established,11/30/15,1915,W. Wilson,960
Walnut Canyon National Monument,Arizona,,NPS,Enlarged,9/24/38,1938,F. D. Roosevelt,913.6
Bandelier National Monument,New Mexico,,NPS,Established,2/11/16,1916,W. Wilson,"23,352"
Bandelier National Monument,New Mexico,,NPS,Enlarged,2/15/32,1932,H. Hoover,
Bandelier National Monument,New Mexico,,NPS,Enlarged,1/9/61,1961,D. Eisenhower,"3,600"
Bandelier National Monument,New Mexico,,NPS,Enlarged,5/27/63,1963,J. Kennedy,"2,882"
Bandelier National Monument,New Mexico,,NPS,Diminished,,,,"3,925"
Acadia National Park,Maine,Sieur de Monts National Monument,NPS,Established,7/8/16,1916,W. Wilson,"5,000"
Acadia National Park,Maine,Sieur de Monts National Monument,NPS,Redesignated Lafayette NP,2/26/19,1919,65th Congress,
Acadia National Park,Maine,Sieur de Monts National Monument,NPS,Redesignated Acadia NP,1930,,,
Capulin Volcano National Monument,New Mexico,Capulin Mountain,NPS,Established,8/9/16,1916,W. Wilson,640.42
Capulin Volcano National Monument,New Mexico,Capulin Mountain,NPS,Redesignated Capulin Volcano NM,3/3/33,1933,H. Hoover,
Part of Tongass National Forest,Alaska,Old Kasaan,USFS,Established,10/25/16,1916,W. Wilson,43
Part of Tongass National Forest,Alaska,Old Kasaan,USFS,Transferred to Forest Service,7/26/55,1955,84th Congress,
Crow Flies High Overlook,North Dakota,Verendrye National Monument,State of North Dakota,Established,6/29/17,1917,W. Wilson,253.04
Crow Flies High Overlook,North Dakota,Verendrye National Monument,State of North Dakota,Transferred to ND,7/30/56,1956,84th Congress,
Casa Grande Ruins National Monument,Arizona,,NPS,Established,8/3/18,1918,W. Wilson,480
Katmai National Park and Preserve,Alaska,Katmai National Monument,NPS,Established,9/24/18,1918,W. Wilson,"1,088,000"
Katmai National Park and Preserve,Alaska,Katmai National Monument,NPS,Enlarged,4/24/31,1931,H. Hoover,
Katmai National Park and Preserve,Alaska,Katmai National Monument,NPS,Restrictions Modified.,6/15/36,1936,F. D. Roosevelt,
Katmai National Park and Preserve,Alaska,Katmai National Monument,NPS,Enlarged,8/4/42,1942,F. D. Roosevelt,
Katmai National Park and Preserve,Alaska,Katmai National Monument,NPS,Enlarged,1/20/69,1969,L. Johnson,"94,547"
Katmai National Park and Preserve,Alaska,Katmai National Monument,NPS,Enlarged,12/1/78,1978,J. Carter,"1,370,000"
Katmai National Park and Preserve,Alaska,Katmai National Monument,NPS,Redesignated NP&P,12/2/80,1980,96th Congress,
Scotts Bluff National Monument,Nebraska,,NPS,Established,12/12/19,1919,W. Wilson,"2,053.83"
Scotts Bluff National Monument,Nebraska,,NPS,Enlarged,6/1/32,1932,H. Hoover,
Scotts Bluff National Monument,Nebraska,,NPS,Enlarged,3/29/40,1940,F. D. Roosevelt,53.34
Yucca House National Monument,Colorado,,NPS,Established,12/19/19,1919,W. Wilson,9.6
Great Basin National Park,Nevada,Lehman Caves National Moument,NPS,Established,1/24/22,1922,W. Harding,593.03
Great Basin National Park,Nevada,Lehman Caves National Moument,NPS,Incorporated into Great Basin NP,10/27/86,1986,99th Congress,
Timpanogos Cave National Monument,Utah,,NPS,Established,10/14/22,1922,W. Harding,250
Timpanogos Cave National Monument,Utah,,NPS,Boundaries Confirmed,3/27/62,1962,J. Kennedy,
Fossil Cycad National Monument,South Dakota,,BLM,Established,10/21/22,1922,W. Harding,320
Fossil Cycad National Monument,South Dakota,,BLM,Transferred to BLM,8/1/56,1956,84th Congress,
Aztec Ruin National Monument,New Mexico,,NPS,Established,1/24/23,1923,W. Harding,4.6
Aztec Ruin National Monument,New Mexico,,NPS,Enlarged,7/2/28,1928,C. Coolidge,12.6
Aztec Ruin National Monument,New Mexico,,NPS,Enlarged,12/19/30,1930,H. Hoover,6.8788
Aztec Ruin National Monument,New Mexico,,NPS,Enlarged,5/27/48,1948,H. Truman,1.255
Hovenweep National Monument,"Utah, Colorado",,NPS,Established,3/2/23,1923,W. Harding,285.8
Hovenweep National Monument,"Utah, Colorado",,NPS,Enlarged,4/26/51,1951,H. Truman,80
Hovenweep National Monument,"Utah, Colorado",,NPS,Enlarged,11/20/52,1952,H. Truman,81.02
Hovenweep National Monument,"Utah, Colorado",,NPS,Diminished,4/6/56,1956,D. Eisenhower,40
Hovenweep National Monument,"Utah, Colorado",,NPS,"Enlarged, administered by Canyonlands NP",,,,40
Hopewell Culture National Historical Park,Ohio,Mound City Group National Monument,NPS,Established,3/2/23,1923,W. Harding,57
Hopewell Culture National Historical Park,Ohio,Mound City Group National Monument,NPS,Redesignated Hopewell Culture NHP,5/27/92,1992,102d Congress,
Pipe Spring National Monument,Arizona,,NPS,Established,5/31/23,1923,W. Harding,40
Bryce Canyon National Park,Utah,Bryce Canyon National Monument,NPS,Established,6/8/23,1923,W. Harding,"7,440"
Bryce Canyon National Park,Utah,Bryce Canyon National Monument,NPS,Redesignated NP,6/7/24,1924,68th Congress,
Carlsbad Caverns National Park,New Mexico,Carlsbad Cave National Monument,NPS,Established,10/25/23,1923,C. Coolidge,719.22
Carlsbad Caverns National Park,New Mexico,Carlsbad Cave National Monument,NPS,Redesignated NP,5/14/30,1930,71st Congress,
Chiricahua National Monument,Arizona,,NPS,Established,4/18/24,1924,C. Coolidge,"3,655.12"
Chiricahua National Monument,Arizona,,NPS,Enlarged,6/10/38,1938,F. D. Roosevelt,"6,407"
Craters of the Moon National Monument,Idaho,,"NPS, BLM",Established,5/2/24,1924,C. Coolidge,"22,651.80"
Craters of the Moon National Monument,Idaho,,"NPS, BLM",Enlarged,7/23/28,1928,C. Coolidge,"26,240"
Craters of the Moon National Monument,Idaho,,"NPS, BLM",Enlarged,7/9/30,1930,H. Hoover,
Craters of the Moon National Monument,Idaho,,"NPS, BLM",Diminished,7/18/41,1941,F. D. Roosevelt,
Craters of the Moon National Monument,Idaho,,"NPS, BLM",Enlarged,11/19/62,1962,J. Kennedy,5360
Craters of the Moon National Monument,Idaho,,"NPS, BLM",Enlarged under BLM,11/9/00,2000,W. Clinton,"661,287"
Statue of Liberty National Monument,New York,Fort Wood,NPS,Established,10/15/24,1924,C. Coolidge,2.5
Statue of Liberty National Monument,New York,Fort Wood,NPS,Enlarged,9/7/37,1937,F. D. Roosevelt,7.88
Statue of Liberty National Monument,New York,Fort Wood,NPS,"Enlarged, redesignated Statue of Liberty NM",5/11/65,1965,L. Johnson,48
Castle Pinckney,South Carolina,,State of South Carolina,Established,10/15/24,1924,C. Coolidge,3.5
Castle Pinckney,South Carolina,,State of South Carolina,Transferred to SC,3/29/56,1956,84th Congress,
Fort Pulaski National Monument,Georgia,,NPS,Established,10/15/24,1924,C. Coolidge,20
Fort Pulaski National Monument,Georgia,,NPS,Enlarged,8/14/58,1958,D. Eisenhower,2.5
Castillo de San Marcos National Monument,Florida,Fort Marion,NPS,Established,10/15/24,1924,C. Coolidge,18.51
Castillo de San Marcos National Monument,Florida,Fort Marion,NPS,Redesignated Castillo San Marcos NM,6/5/42,1942,57th Congress,
Fort Matanzas National Monument,Florida,,NPS,Established,10/15/24,1924,C. Coolidge,1
Fort Matanzas National Monument,Florida,,NPS,Enlarged,1/9/35,1935,F. D. Roosevelt,88
Fort Matanzas National Monument,Florida,,NPS,Enlarged,3/24/48,1948,H. Truman,209.42
Wupatki National Monument,Arizona,,NPS,Established,12/9/24,1924,C. Coolidge,"2,234.10"
Wupatki National Monument,Arizona,,NPS,Enlarged,7/9/37,1937,F. D. Roosevelt,"33,631.20"
Wupatki National Monument,Arizona,,NPS,Diminished,1/22/41,1941,F. D. Roosevelt,52.27
Natchez Trace National Scenic Trail,Tennessee,Meriwether Lewis National Monument,NPS,Established,2/6/25,1925,C. Coolidge,50
Natchez Trace National Scenic Trail,Tennessee,Meriwether Lewis National Monument,NPS,Enlarged,12/6/27,1927,C. Coolidge,100
Natchez Trace National Scenic Trail,Tennessee,Meriwether Lewis National Monument,NPS,"Included in the Natchez Trace Parkway, now Natchez Trace National Scenic Trail",8/10/61,1961,,
Glacier Bay National Park and Preserve,Alaska,Glacier Bay National Monument,NPS,Established,2/26/25,1925,C. Coolidge,"1,379,315.58"
Glacier Bay National Park and Preserve,Alaska,Glacier Bay National Monument,NPS,Enlarged,4/18/39,1939,F. D. Roosevelt,"904,960"
Glacier Bay National Park and Preserve,Alaska,Glacier Bay National Monument,NPS,Diminished,3/31/55,1955,D. Eisenhower,"4,193 (water)"
Glacier Bay National Park and Preserve,Alaska,Glacier Bay National Monument,NPS,Diminished,,,,"24,925"
Glacier Bay National Park and Preserve,Alaska,Glacier Bay National Monument,NPS,Enlarged,12/1/78,1978,J. Carter,"550,000"
Glacier Bay National Park and Preserve,Alaska,Glacier Bay National Monument,NPS,Redesignated NP&P,12/2/80,1980,96th Congress,
Part of Old Fort Niagara State Park,New York,Father Millet Cross,State of New York,Established,9/5/25,1925,C. Coolidge,0.0074
Part of Old Fort Niagara State Park,New York,Father Millet Cross,State of New York,Transferred to NY,9/7/49,1949,81st Congress,
Part of Old Fort Niagara State Park,New York,Father Millet Cross,State of New York,Now part of Old Fort Niagara State Park,,,,
Lava Beds National Monument,California,,NPS,Established,11/21/25,1925,C. Coolidge,"45,589.92"
Lava Beds National Monument,California,,NPS,Enlarged,4/27/51,1951,H. Truman,211.13
Arches National Park,Utah,Arches National Monument,NPS,Established,4/12/29,1929,H. Hoover,"4,520"
Arches National Park,Utah,Arches National Monument,NPS,Enlarged,11/25/38,1938,F. D. Roosevelt,"29,160"
Arches National Park,Utah,Arches National Monument,NPS,Enlarged,7/22/60,1960,D. Eisenhower,480
Arches National Park,Utah,Arches National Monument,NPS,Diminished,7/22/60,1960,D. Eisenhower,720
Arches National Park,Utah,Arches National Monument,NPS,Enlarged,1/20/69,1969,L. Johnson,"48,943"
Arches National Park,Utah,Arches National Monument,NPS,Redesignated NP,11/12/71,1971,92d Congress,
Part of White River National Forest,Colorado,Holy Cross National Monument,USFS,Established,5/11/29,1929,H. Hoover,"1,392"
Part of White River National Forest,Colorado,Holy Cross National Monument,USFS,Redesignated under Forest Service,8/3/50,1950,81st Congress,
Sunset Crater Volcano National Monument,Arizona,Sunset Crater National Monument,NPS,Established,5/26/30,1930,H. Hoover,"3,040"
Sunset Crater Volcano National Monument,Arizona,Sunset Crater National Monument,NPS,Redesignated Sunset Crater Volcano NM,11/16/90,1990,101st Congress,
Great Sand Dunes National Park and Preserve,Colorado,Great Sand Dunes National Monument,NPS,Established,3/17/32,1932,H. Hoover,"35,528.36"
Great Sand Dunes National Park and Preserve,Colorado,Great Sand Dunes National Monument,NPS,Resurveyed & Modified,3/12/46,1946,H. Truman,
Great Sand Dunes National Park and Preserve,Colorado,Great Sand Dunes National Monument,NPS,Enlarged,6/7/56,1956,D. Eisenhower,960
Great Sand Dunes National Park and Preserve,Colorado,Great Sand Dunes National Monument,NPS,Diminished,,,,9880
Great Sand Dunes National Park and Preserve,Colorado,Great Sand Dunes National Monument,NPS,Renamed National Park & Preserve,11/22/00,2000,106th Congress,
Grand Canyon National Park,Arizona,"Grand Canyon ""II""",NPS,Established,12/22/32,1932,H. Hoover,"273,145"
Grand Canyon National Park,Arizona,"Grand Canyon ""II""",NPS,Diminished,4/4/40,1940,F. D. Roosevelt,"71,854"
Grand Canyon National Park,Arizona,"Grand Canyon ""II""",NPS,Redesignated Grand Canyon NP,1/3/75,1975,93d Congress,
White Sands National Monument,New Mexico,,NPS,Established,1/18/33,1933,H. Hoover,"131,486.84"
White Sands National Monument,New Mexico,,NPS,Enlarged,11/28/34,1934,F. D. Roosevelt,158.91
White Sands National Monument,New Mexico,,NPS,Diminished,8/29/38,1938,F. D. Roosevelt,
White Sands National Monument,New Mexico,,NPS,Enlarged,6/24/53,1953,D. Eisenhower,478.53
White Sands National Monument,New Mexico,,NPS,Enlarged,11/10/78,1978,95th Congress,760
Death Valley National Park,"California, Nevada",Death Valley National Monument,NPS,Established,2/11/33,1933,H. Hoover,"848,581.36"
Death Valley National Park,"California, Nevada",Death Valley National Monument,NPS,Enlarged,3/26/37,1937,F. D. Roosevelt,"305,920"
Death Valley National Park,"California, Nevada",Death Valley National Monument,NPS,Enlarged,1/17/52,1952,H. Truman,40
Death Valley National Park,"California, Nevada",Death Valley National Monument,NPS,Redesignated NP,10/31/94,1994,103d Congress,
Saguaro National Park,Arizona,Saguaro National Monument,NPS,Established,3/1/33,1933,H. Hoover,"53,510.08"
Saguaro National Park,Arizona,Saguaro National Monument,NPS,Enlarged,11/15/61,1961,J. Kennedy,"15,360"
Saguaro National Park,Arizona,Saguaro National Monument,NPS,Redesignated NP,10/14/94,1994,103d Congress,
Black Canyon of the Gunnison National Park,Colorado,Black Canyon of the Gunnison National Monument,NPS,Established,3/2/33,1933,H. Hoover,"10,287.95"
Black Canyon of the Gunnison National Park,Colorado,Black Canyon of the Gunnison National Monument,NPS,Enlarged,5/16/38,1938,F. D. Roosevelt,100
Black Canyon of the Gunnison National Park,Colorado,Black Canyon of the Gunnison National Monument,NPS,Enlarged,10/28/39,1939,F. D. Roosevelt,"2,760"
Black Canyon of the Gunnison National Park,Colorado,Black Canyon of the Gunnison National Monument,NPS,Diminished,4/8/60,1960,D. Eisenhower,470
Black Canyon of the Gunnison National Park,Colorado,Black Canyon of the Gunnison National Monument,NPS,Redesignated NP,1/6/99,1999,103d Congress,
Cedar Breaks National Monument,Utah,,NPS,Established,8/22/33,1933,F. D. Roosevelt,"5,701.39"
Dry Tortugas National Park,Florida,Fort Jefferson National Monument,NPS,Established,1/4/35,1935,F. D. Roosevelt,"47,125"
Dry Tortugas National Park,Florida,Fort Jefferson National Monument,NPS,Redesignated Dry Tortugas NP,10/26/92,1992,102d Congress,
Joshua Tree National Park,California,Joshua Tree National Monument,NPS,Established,8/10/36,1936,F. D. Roosevelt,"825,340"
Joshua Tree National Park,California,Joshua Tree National Monument,NPS,Redesignated NP,10/31/94,1994,103d Congress,
Zion National Park,Utah,"Zion ""II""",NPS,Established,1/22/37,1937,F. D. Roosevelt,"49,150"
Zion National Park,Utah,"Zion ""II""",NPS,Redesignated NP,7/11/56,1956,84th Congress,
Organ Pipe Cactus National Monument,Arizona,,NPS,Established,4/13/37,1937,F. D. Roosevelt,"330,690"
Capitol Reef National Park,Utah,Capitol Reef National Monument,NPS,Established,8/2/37,1937,F. D. Roosevelt,"37,060"
Capitol Reef National Park,Utah,Capitol Reef National Monument,NPS,Enlarged,7/2/58,1958,D. Eisenhower,"3,040"
Capitol Reef National Park,Utah,Capitol Reef National Monument,NPS,Enlarged,1/20/69,1969,L. Johnson,"215,056"
Capitol Reef National Park,Utah,Capitol Reef National Monument,NPS,Redesignated NP,12/18/71,1971,92d Congress,
Channel Islands National Park,California,Channel Islands National Monument,NPS,Established,4/26/38,1938,F. D. Roosevelt,"1,119.98"
Channel Islands National Park,California,Channel Islands National Monument,NPS,Enlarged,2/9/49,1949,H. Truman,"25,918.02"
Channel Islands National Park,California,Channel Islands National Monument,NPS,Redesignated NP,5/31/80,1980,96th Congress,
Fort Laramie National Historic Site,Wyoming,Fort Laramie National Monument,NPS,Established,7/16/38,1938,F. D. Roosevelt,214.41
Fort Laramie National Historic Site,Wyoming,Fort Laramie National Monument,NPS,Redesignated NHS,4/29/60,1960,86th Congress,
Gulf Islands National Seashore,Florida,Santa Rosa Island,NPS,Established,5/17/39,1939,F. D. Roosevelt,"9,500"
Gulf Islands National Seashore,Florida,Santa Rosa Island,NPS,Diminished,8/13/45,1945,H. Truman,"4,700"
Gulf Islands National Seashore,Florida,Santa Rosa Island,NPS,Incorporated into Gulf Islands NS,7/30/46,1946,79th Congress,
Tuzigoot National Monument,Arizona,,NPS,Established,7/25/39,1939,F. D. Roosevelt,42.67
Tuzigoot National Monument,Arizona,,NPS,Enlarged,11/10/78,1978,95th Congress,791
Grand Teton National Park,Wyoming,Jackson Hole National Monument,NPS,Established,3/15/43,1943,F. D. Roosevelt,"210,950"
Grand Teton National Park,Wyoming,Jackson Hole National Monument,NPS,Redesignated Grand Teton NP,9/14/50,1950,81st Congress,
Effigy Mounds National Monument,Iowa,,NPS,Established,10/25/49,1949,H. Truman,"1,000"
Thomas Edison National Historical Park,New Jersey,Edison Laboratory,NPS,Established,7/14/56,1956,D. Eisenhower,1.51
Thomas Edison National Historical Park,New Jersey,Edison Laboratory,NPS,Redesignated NHS,9/5/62,1962,87th Congress,
Thomas Edison National Historical Park,New Jersey,Edison Laboratory,NPS,Redesignated Thomas Edison NHP,3/30/09,2009,111th Congress,
Chesapeake and Ohio Canal National Historical Park,Maryland,Chesapeake and Ohio Canal National Monument,NPS,Established,1/18/61,1961,D. Eisenhower,"5,263.94"
Chesapeake and Ohio Canal National Historical Park,Maryland,Chesapeake and Ohio Canal National Monument,NPS,Redesignated NHP,1/8/71,1971,91st Congress,
Russell Cave National Monument,Alabama,,NPS,Established,5/11/61,1961,J. Kennedy,310.45
Buck Island Reef National Monument,Virgin Islands,,NPS,Established,12/28/61,1961,J. Kennedy,850
Buck Island Reef National Monument,Virgin Islands,,NPS,Enlarged,2/1/75,1975,G. Ford,30
Buck Island Reef National Monument,Virgin Islands,,NPS,Amending Description,3/28/75,1975,G. Ford,
Buck Island Reef National Monument,Virgin Islands,,NPS,Enlarged,1/17/01,2001,W. Clinton,"17,255"
Grand Canyon National Park,Arizona,Marble Canyon National Monument,NPS,Established,1/20/69,1969,L. Johnson,"32,546.69"
Grand Canyon National Park,Arizona,Marble Canyon National Monument,NPS,Incorporated into Grand Canyon NP,1/3/75,1975,93d Congress,
Part of Tongass National Forest,Alaska,Admiralty Island National Monument,USFS,Established,12/1/78,1978,J. Carter,"1,100,000"
Aniakchak National Monument & Preserve,Alaska,Aniakchak National Monument,NPS,Established,12/1/78,1978,J. Carter,"350,000"
Aniakchak National Monument & Preserve,Alaska,Aniakchak National Monument,NPS,Partially Redesignated Preserve,12/2/80,1980,96th Congress,
Becharof National Wildlife Refuge,Alaska,,FWS,Established,12/1/78,1978,J. Carter,"1,200,000"
Bering Land Bridge National Preserve,Alaska,Bering Land Bridge National Monument,NPS,Established,12/1/78,1978,J. Carter,"2,590,000"
Bering Land Bridge National Preserve,Alaska,Bering Land Bridge National Monument,NPS,Redesignated National Preserve,12/2/80,1980,96th Congress,
Cape Krusenstern National Monument,Alaska,,NPS,Established,12/1/78,1978,J. Carter,"560,000"
Denali National Park,Alaska,Denali National Park and Preserve,NPS,Established,12/1/78,1978,J. Carter,"3,890,000"
Denali National Park,Alaska,Denali National Park and Preserve,NPS,Redesignated NP,12/2/80,1980,96th Congress,
Gates of the Arctic National Park and Preserve,Alaska,Gates of the Arctic National Monument,NPS,Established,12/1/78,1978,J. Carter,"8,220,000"
Gates of the Arctic National Park and Preserve,Alaska,Gates of the Arctic National Monument,NPS,Redesignated NP&P,12/2/80,1980,96th Congress,
Kenai Fjords National Park,Alaska,Kenai Fjords National Monument,NPS,Established,12/1/78,1978,J. Carter,"570,000"
Kenai Fjords National Park,Alaska,Kenai Fjords National Monument,NPS,Redesignated NP,12/2/80,1980,96th Congress,
Kobuk Valley National Park,Alaska,Kobuk Valley National Monument,NPS,Established,12/1/78,1978,J. Carter,"1,710,000"
Kobuk Valley National Park,Alaska,Kobuk Valley National Monument,NPS,Redesignated NP,12/2/80,1980,96th Congress,
Lake Clark National Park and Preserve,Alaska,Lake Clark National Monument,NPS,Established,12/1/78,1978,J. Carter,"2,500,000"
Lake Clark National Park and Preserve,Alaska,Lake Clark National Monument,NPS,Redesignated National Park & Preserve,12/2/80,1980,96th Congress,
Part of Tongass National Forest,Alaska,Misty Fjords National Monument,USFS,Established,12/1/78,1978,J. Carter,"2,285,000"
Part of Tongass National Forest,Alaska,Misty Fjords National Monument,USFS,Redesignated within Tongass National Forest,12/2/80,1980,,
Noatak National Preserve,Alaska,Noatak National Monument,NPS,Established,12/1/78,1978,J. Carter,"5,880,000"
Noatak National Preserve,Alaska,Noatak National Monument,NPS,Redesignated Preserve,12/2/80,1980,96th Congress,
Wrangall-St. Elias National Park and Preserve,Alaska,Wrangall-St. Elias National Monument,NPS,Established,12/1/78,1978,J. Carter,"10,950,000"
Wrangall-St. Elias National Park and Preserve,Alaska,Wrangall-St. Elias National Monument,NPS,Redesignated NP&P,12/2/80,1980,96th Congress,
Yukon-Charley Rivers National Preserve,Alaska,Yukon-Charley Rivers National Monument,NPS,Established,12/1/78,1978,J. Carter,"1,720,000"
Yukon-Charley Rivers National Preserve,Alaska,Yukon-Charley Rivers National Monument,NPS,Redesignated Preserve,12/2/80,1980,96th Congress,
Yukon Flats National Wildlife Refuge,Alaska,Yukon Flats National Monument,FWS,Established,12/1/78,1978,J. Carter,"10,600,000"
Yukon Flats National Wildlife Refuge,Alaska,Yukon Flats National Monument,FWS,Redesignated National Wildlife Refuge,12/2/80,1980,96th Congress,
Grand Staircase-Escalante National Monument,Utah,,BLM,Established,9/18/96,1996,W. Clinton,"1,700,000"
Agua Fria National Monument,Arizona,,BLM,Established,1/11/00,2000,W. Clinton,"71,100"
California Coastal National Monument,California,,BLM,Established (BLM),1/11/00,2000,W. Clinton,883
California Coastal National Monument,California,,BLM,Enlarged,3/11/14,2014,B. H. Obama,"1,665"
California Coastal National Monument,California,,BLM,Enlarged,1/12/17,2017,B. H. Obama,"6,230"
Grand Canyon-Parashant National Monument,Arizona,,BLM,Established,1/11/00,2000,W. Clinton,"1,014,000"
Part of Sequoia National Forest,California,Giant Sequoia National Monument,USFS,Established,4/15/00,2000,W. Clinton,"327,769"
Canyon of the Ancients National Monument,Colorado,,BLM,Established,6/9/00,2000,W. Clinton,"164,000"
Cascade-Siskiyou National Monument,Oregon,,BLM,Established (BLM),6/9/00,2000,W. Clinton,"52,000"
Cascade-Siskiyou National Monument,Oregon,,BLM,Enlarged,1/12/17,2017,B. H. Obama,"48,000"
Hanford Reach National Monument,Washington,,FWS,Established,6/9/00,2000,W. Clinton,"195,000"
Ironwood Forest National Monument,Arizona,,BLM,Established,6/9/00,2000,W. Clinton,"128,917"
President Lincoln and Soldier's Home National Monument,"Washington, DC",,NPS,Established,7/7/00,2000,W. Clinton,2.3
Vermillion Cliffs National Monument,Arizona,,BLM,Established,11/9/00,2000,W. Clinton,"293,000"
Carrizo Plain National Monument,California,,BLM,Established,1/17/01,2001,W. Clinton,"204,107"
Kasha-Katuwe Tent Rocks National Monument,New Mexico,,BLM,Established,1/17/01,2001,W. Clinton,"4,148"
Minidoka National Historic Site,Idaho,Minidoka Internment National Monument,NPS,Established,1/17/01,2001,W. Clinton,72.75
Minidoka National Historic Site,Idaho,Minidoka Internment National Monument,NPS,Redesignated NHS,5/8/08,2008,G.W. Bush,
Pompeys Pillar National Monument,Montana,,BLM,Established,1/17/01,2001,W. Clinton,51
Sonoran Desert National Monument,Arizona,,BLM,Established,1/17/01,2001,W. Clinton,"486,149"
Upper Missouri River Breaks National Monument,Montana,,BLM,Established,1/17/01,2001,W. Clinton,"377,346"
Virgin Islands Coral Reef National Monument,Virgin Islands,,NPS,Established,1/17/01,2001,W. Clinton,"12,708"
Governors Island National Monument,New York,,NPS,Established,1/19/01,2001,W. Clinton,20
Governors Island National Monument,New York,,NPS,Reaffirmed,1/31/03,2003,G. W. Bush,22
African Burial Ground National Monument,New York,,NPS,Established,2/27/06,2006,G. W. Bush,0.345
Papahānaumokuākea Marine National Monument,Hawaii,Northwestern Hawaiian Islands National Monument,"FWS, NOAA",Established (FWS and NOAA),6/15/06,2006,G. W. Bush,"140,000 sq. miles"
Papahānaumokuākea Marine National Monument,Hawaii,Northwestern Hawaiian Islands National Monument,"FWS, NOAA",Redesignated Papahānaumokuākea MNM,2/28/07,2007,G.W. Bush,
Papahānaumokuākea Marine National Monument,Hawaii,Northwestern Hawaiian Islands National Monument,"FWS, NOAA",Enlarged,8/26/16,2016,B.H. Obama,"442,781 sq. miles"
World War II Valor in the Pacific National Monument,Hawaii,,"NPS, FWS",Established,12/5/08,2008,G. W. Bush,"6,310 sq. miles"
Rose Atoll National Monument,American Samoa,,NOAA,Established,1/6/09,2009,G. W. Bush,"13,451 sq. miles"
Pacific Remote Islands National Monument,Hawaii,,"FWS, NOAA",Established,1/6/09,2009,G. W. Bush,"86,888 sq. miles"
Pacific Remote Islands National Monument,Hawaii,,"FWS, NOAA",Enlarged,9/25/14,2014,B. H. Obama,"408,301 sq. miles"
Mariana's Trench National Monument,"Northern Mariana Islands, Guam",,NOAA,Established,1/6/09,2009,G. W. Bush,"95,216 sq. miles"
Fort Monroe National Monument,Virginia,,NPS,Established,11/1/11,2011,B. H. Obama,325.21
Fort Ord National Monument,California,,BLM,Established,4/20/12,2012,B. H. Obama,"14,651"
Chimney Rock National Monument,Colorado,,USFS,Established,9/21/12,2012,B. H. Obama,"4,726"
Cesar E. Chavez National Monument,California,,NPS,Established,10/8/12,2012,B. H. Obama,10.5
San Juan Islands National Monument,Washington,,BLM,Established,3/25/13,2013,B. H. Obama,970
Rio Grande del Norte National Monument,New Mexico,,BLM,Established,3/25/13,2013,B. H. Obama,"242,555"
Harriet Tubman Underground Railroad National Historical Park,Maryland,,"NPS, FWS",Established (NPS and FWS),3/25/13,2013,B. H. Obama,"11,750"
Harriet Tubman Underground Railroad National Historical Park,Maryland,,"NPS, FWS",Partially redesignated NHP (NPS),12/19/14,2014,113th Congress,480
First State National Historical Park,Delaware,,NPS,Established,3/25/13,2013,B. H. Obama,"1,108"
First State National Historical Park,Delaware,,NPS,Redesignated NHP,12/19/14,2014,113th Congress,
Charles Young Buffalo Soldiers Monument,Ohio,,NPS,Established,3/25/13,2013,B. H. Obama,59.65
Organ Mountains-Desert Peaks National Monument,New Mexico,,BLM,Established,5/21/14,2014,B. H. Obama,"496,330"
San Gabriel Mountains National Monument,California,,USFS,Established,10/10/14,2014,B. H. Obama,"346,177"
Honouliuli National Monument,Hawaii,,NPS,Established,2/14/15,2015,B. H. Obama,123
Pullman National Monument,Illinois,,NPS,Established,2/19/15,2015,B. H. Obama,0.2397
Browns Canyon National Monument,New Mexico,,"BLM, USFS",Established,2/19/15,2015,B. H. Obama,"21,586"
Berryessa Snow Mountain National Monument,California,,USFS,Established,7/10/15,2015,B. H. Obama,"330,780"
Waco Mammoth National Monument,Texas,,NPS,Established,7/10/15,2015,B. H. Obama,7.11
Basin and Range National Monument,Nevada,,BLM,Established,7/10/15,2015,B. H. Obama,"704,000"
Mojave Trails National Monument,California,,BLM,Established,2/12/16,2016,B. H. Obama,"1,600,000"
Sand to Snow National Monument,California,,USFS,Established,2/12/16,2016,B. H. Obama,"154,000"
Castle Mountains National Monument,California,,NPS,Established,2/12/16,2016,B. H. Obama,"20,920"
Belmont-Paul Women's Equality National Monument,"Washington, DC",,NPS,Established,4/12/16,2016,B. H. Obama,0.34
Stonewall National Monument,New York,,NPS,Established,6/24/16,2016,B. H. Obama,0.12
Katahdin Woods and Waters National Monument,Maine,,NPS,Established,8/24/16,2016,B. H. Obama,"87,563"
Northeast Canyons and Seamounts Marine National Monument,Massachusetts,,"NOAA, FWS",Established,9/15/16,2016,B.H. Obama,"4,913 square miles"
Bears Ears National Monument,Utah,,"BLM, USFS",Established,12/28/16,2016,B. H. Obama,"1,350,000"
Gold Butte National Monument,Nevada,,BLM,Established,12/28/16,2016,B. H. Obama,"300,000"
Birmingham Civil Rights National Monument,Alabama,,NPS,Established,1/12/17,2017,B. H. Obama,0.88
Freedom Riders National Monument,Alabama,,NPS,Established,1/12/17,2017,B. H. Obama,5.96
Reconstruction Era National Monument,South Carolina,,NPS,Established,1/12/17,2017,B. H. Obama,15.56