America’s national monuments can help honor the historical, cultural, and natural stories of our country.

As the Biden Administration seeks to advance environmental justice and conserve public lands and waters, the Antiquities Act is an invaluable tool the President can use to honor the diverse experiences of our nation and make sure these important stories and connections to land and waters continue to exist for generations to come. These natural, cultural and historic sites, lands of great scientific value, and ocean waters are not only places, but also contribute to the ongoing and often-untold stories and true history of the United States.

The Antiquities Act is one tool the President has to fulfill his commitments to conservation for all, including protecting 30% of America’s lands and waters by 2030. When we protect more lands, we’re able to mitigate some of the worst effects of the climate crisis and provide more opportunities for people of all backgrounds to experience the benefit of time in the outdoors.

These landmarks, landscapes, and seascapes have value which far exceeds their physical features; they can elevate and memorialize diverse personal stories, cultural continuity, and poignant moments held within America’s lands and waters.

 

*This list reflects Antiquities Act designations and does not reflect management changes or times the Antiquities Act was used to enlarge current monuments.
Monument
State(s)
Date
President
Devils Tower
State: Wyoming
Date: 9/24/1906
President: T. Roosevelt
El Morro
State: New Mexico
Date: 12/08/1906
President: T. Roosevelt
Montezuma Castle
State: New Mexico
Date: 12/08/1906
President: T. Roosevelt
Petrified Forest
State: Arizona
Date: 12/08/1906
President: T. Roosevelt
Chaco Culture
State: New Mexico
Date: 3/11/1907
President: T. Roosevelt
Lassen Volcanic
State: California
Date: 5/06/1907
President: T. Roosevelt
Gila Cliff Dwellings
State: New Mexico
Date: 11/16/1907
President: T. Roosevelt
Tonto
State: Arizona
Date: 12/19/07
President: T. Roosevelt
Muir Woods
State: California
Date: 01/09/08
President: T. Roosevelt
Grand Canyon
State: Arizona
Date: 01/11/08
President: T. Roosevelt
Pinnacles
State: California
Date: 01/16/08
President: T. Roosevelt
Jewel Cave
State: South Dakota
Date: 02/07/08
President: T. Roosevelt
Natural Bridges
State: Utah
Date: 04/16/08
President: T. Roosevelt
Lewis and Clark Caverns
State: Montana
Date: 05/11/08
President: T. Roosevelt
Tumacacori
State: Arizona
Date: 09/15/08
President: T. Roosevelt
Part of Rio Grande National Forest
State: Colorado
Date: 12/07/08
President: T. Roosevelt
Olympic
State: Washington
Date: 03/02/09
President: T. Roosevelt
Navajo
State: Arizona
Date: 03/20/09
President: W. Taft
Oregon Caves
State: Oregon
Date: 07/12/09
President: W. Taft
Zion
State: Utah
Date: 07/31/09
President: W. Taft
Spirit Mountain Cave
State: Wyoming
Date: 09/21/09
President: W. Taft
Salinas Pueblo Missions
State: New Mexico
Date: 11/01/09
President: W. Taft
Sitka
State: Alaska
Date: 03/23/10
President: W. Taft
Rainbow Bridge
State: Utah
Date: 05/30/10
President: W. Taft
Big Hole
State: Montana
Date: 06/23/10
President: W. Taft
Colorado
State: Colorado
Date: 05/24/11
President: W. Taft
Devils Postpile
State: California
Date: 07/06/11
President: W. Taft
Cabrillo
State: California
Date: 10/14/13
President: W. Wilson
Papago Park
State: Arizona
Date: 01/31/14
President: W. Wilson
Dinosaur
State: Utah, Colorado
Date: 10/04/15
President: W. Wilson
Walnut Canyon
State: Arizona
Date: 11/30/15
President: W. Wilson
Bandelier
State: New Mexico
Date: 02/11/16
President: W. Wilson
Acadia
State: Maine
Date: 07/08/16
President: W. Wilson
Capulin Volcano
State: New Mexico
Date: 02/11/16
President: W. Wilson
Tongass
State: Alaska
Date: 10/25/16
President: W. Wilson
Crow Flies High Overlook
State: North Dakota
Date: 06/29/17
President: W. Wilson
Casa Grande Ruins
State: Arizona
Date: 08/03/18
President: W. Wilson
Katmai
State: Alaska
Date: 09/24/18
President: W. Wilson
Scotts Bluff
State: Nebraska
Date: 12/12/19
President: W. Wilson
Yucca House
State: Colorado
Date: 12/19/19
President: W. Wilson
Great Basin
State: Nevada
Date: 01/24/22
President: W. Harding
Timpanogos Cave
State: Utah
Date: 10/14/22
President: W. Harding
Fossil Cycad
State: South Dakota
Date: 10/21/22
President: W. Harding
Aztec Ruin
State: New Mexico
Date: 01/24/23
President: W. Harding
Hovenweep
State: Utah, Colorado
Date: 03/02/23
President: W. Harding
Hopewell
State: Ohio
Date: 03/02/23
President: W. Harding
Pipe Spring
State: Arizona
Date: 05/31/23
President: W. Harding
Bryce Canyon
State: Utah
Date: 06/08/23
President: W. Harding
Carlsbad Caverns
State: New Mexico
Date: 10/25/23
President: C. Coolidge
Chiricahua
State: Arizona
Date: 04/18/24
President: C. Coolidge
Craters of the Moon
State: Idaho
Date: 05/02/24
President: C. Coolidge
Statue of Liberty
State: New York
Date: 10/15/24
President: C. Coolidge
Castle Pinckney
State: South Carolina
Date: 10/15/24
President: C. Coolidge
Fort Pulaski
State: Georgia
Date: 10/15/24
President: C. Coolidge
Castillo de San Marcos
State: Florida
Date: 10/15/24
President: C. Coolidge
Fort Matanzas
State: Florida
Date: 10/15/24
President: C. Coolidge
Wupatki
State: Arizona
Date: 12/09/24
President: C. Coolidge
Natchez Trace
State: Tennessee
Date: 02/06/25
President: C. Coolidge
Glacier Bay
State: Alaska
Date: 02/26/25
President: C. Coolidge
Old Fort Niagara
State: New York
Date: 09/05/25
President: C. Coolidge
Lava Beds
State: California
Date: 11/21/25
President: C. Coolidge
Arches
State: Utah
Date: 04/12/29
President: H. Hoover
White River
State: Colorado
Date: 05/11/29
President: H. Hoover
Sunset Crater Volcano
State: Arizona
Date: 05/26/30
President: H. Hoover
Great Sand Dunes
State: Colorado
Date: 03/17/32
President: H. Hoover
Grand Canyon
State: Arizona
Date: 12/22/32
President: H. Hoover
White Sands
State: New Mexico
Date: 01/18/33
President: H. Hoover
Death Valley
State: California, Nevada
Date: 02/11/33
President: H. Hoover
Saguaro
State: Arizona
Date: 03/01/33
President: H. Hoover
Black Canyon of the Gunnison
State: Colorado
Date: 03/02/33
President: H. Hoover
Cedar Breaks
State: Utah
Date: 08/22/33
President: F.D. Roosevelt
Dry Tortugas
State: Florida
Date: 01/04/25
President: F.D. Roosevelt
Joshua Tree
State: California
Date: 08/10/36
President: F.D. Roosevelt
Zion
State: Utah
Date: 01/22/37
President: F.D. Roosevelt
Organ Pipe Cactus
State: Arizona
Date: 04/13/37
President: F.D. Roosevelt
Capitol Reef
State: Utah
Date: 08/02/37
President: F.D. Roosevelt
Channel Islands
State: California
Date: 04/26/38
President: F.D. Roosevelt
Fort Laramie
State: Wyoming
Date: 07/16/38
President: F.D. Roosevelt
Gulf Islands
State: Florida
Date: 05/17/39
President: F.D. Roosevelt
Tuzigoot
State: Arizona
Date: 07/25/39
President: F.D. Roosevelt
Grand Teton
State: Wyoming
Date: 03/15/43
President: F.D. Roosevelt
Effigy Mounds
State: Iowa
Date: 10/25/49
President: H. Truman
Thomas Edison
State: New Jersey
Date: 07/14/56
President: D. Eisenhower
Chesapeake and Ohio Canal
State: Maryland
Date: 01/18/61
President: D. Eisenhower
Russell Cave
State: Alabama
Date: 05/11/61
President: J. Kennedy
Buck Island Reef
State: Virgin Islands
Date: 12/28/61
President: J. Kennedy
Grand Canyon
State: Arizona
Date: 01/20/69
President: L. Johnson
Tongass
State: Alaska
Date: 12/01/78
President: J. Carter
Aniakchak
State: Alaska
Date: 12/01/78
President: J. Carter
Becharof
State: Alaska
Date: 12/01/78
President: J. Carter
Bering Land Bridge
State: Alaska
Date: 12/01/78
President: J. Carter
Cape Krusenstern
State: Alaska
Date: 12/01/78
President: J. Carter
Denali
State: Alaska
Date: 12/01/78
President: J. Carter
Gates of the Arctic
State: Alaska
Date: 12/01/78
President: J. Carter
Kenai Fjords
State: Alaska
Date: 12/01/78
President: J. Carter
Kobuk Valley
State: Alaska
Date: 12/01/78
President: J. Carter
Lake Clark
State: Alaska
Date: 12/01/78
President: J. Carter
Tongass
State: Alaska
Date: 12/01/78
President: J. Carter
Noatak
State: Alaska
Date: 12/01/78
President: J. Carter
Wrangall-St. Elias
State: Alaska
Date: 12/01/78
President: J. Carter
Yukon-Charley Rivers
State: Alaska
Date: 12/01/78
President: J. Carter
Yukon Flats
State: Alaska
Date: 12/01/78
President: J. Carter
Grand Staircase-Escalante
State: Utah
Date: 09/18/96
President: W. Clinton
California Coastal
State: California
Date: 01/11/00
President: W. Clinton
Agua Fria
State: Arizona
Date: 01/11/00
President: W. Clinton
Grand Canyon-Parashant
State: Arizona
Date: 01/11/00
President: W. Clinton
Giant Sequoia
State: California
Date: 04/15/00
President: W. Clinton
Cascade-Siskiyou
State: California, Oregon
Date: 06/09/00
President: W. Clinton
Canyons of the Ancients
State: Colorado
Date: 06/09/00
President: W. Clinton
Hanford Reach
State: Washington
Date: 06/09/00
President: W. Clinton
Ironwood Forest
State: Arizona
Date: 06/09/00
President: W. Clinton
President Lincoln and Soldier's Home
State: Washington, D.C.
Date: 07/07/00
President: W. Clinton
Vermillion Cliffs
State: Arizona
Date: 11/09/00
President: W. Clinton
Carrizo Plain
State: California
Date: 01/17/01
President: W. Clinton
Kasha-Katuwe Tent Rocks
State: New Mexico
Date: 01/17/01
President: W. Clinton
Minidoka
State: Idaho
Date: 01/17/01
President: W. Clinton
Pompeys Pillar
State: Montana
Date: 01/17/01
President: W. Clinton
Sonoran Desert
State: Arizona
Date: 01/17/01
President: W. Clinton
Upper Missouri River Breaks
State: Montana
Date: 01/17/01
President: W. Clinton
Virgin Islands Coral Reef
State: Virgin Islands
Date: 01/17/01
President: W. Clinton
Governors Island
State: New York
Date: 01/19/01
President: W. Clinton
African Burial Ground
State: New York
Date: 02/27/06
President: W. Clinton
Papahānaumokuākea
State: Hawaii
Date: 06/15/06
President: G.W. Bush
World War II Valor in the Pacific
State: Hawaii
Date: 12/05/08
President: G.W. Bush
Rose Atoll
State: American Samoa
Date: 01/06/09
President: G.W. Bush
Pacific Remote Islands
State: Hawaii
Date: 01/06/09
President: G.W. Bush
Marianas Trench
State: Northern Mariana Islands, Guam
Date: 01/06/09
President: G.W. Bush
Fort Monroe
State: Virginia
Date: 11/01/11
President: B. Obama
Fort Ord
State: California
Date: 04/20/12
President: B. Obama
Chimney Rock
State: Colorado
Date: 09/21/12
President: B. Obama
Cesar E. Chavez
State: California
Date: 10/08/12
President: B. Obama
San Juan Islands
State: Washington
Date: 3/25/13
President: B. Obama
Rio Grande del Norte
State: New Mexico
Date: 3/25/13
President: B. Obama
Harriet Tubman Underground Railroad
State: Maryland
Date: 03/25/13
President: B. Obama
First State
State: Delaware
Date: 03/25/13
President: B. Obama
Charles Young Buffalo Soldiers
State: Ogio
Date: 03/25/13
President: B. Obama
Organ Mountains-Desert Peaks
State: New Mexico
Date: 05/21/14
President: B. Obama
San Gabriel Mountains
State: California
Date: 10/10/14
President: B. Obama
Honouliuli
State: Hawaii
Date: 02/14/15
President: B. Obama
Pullman
State: Illinois
Date: 02/19/15
President: B. Obama
Browns Canyon
State: Colorado
Date: 02/19/15
President: B. Obama
Berryessa Snow Mountain
State: California
Date: 07/10/15
President: B. Obama
Waco Mammoth
State: Texas
Date: 07/10/15
President: B. Obama
Basin and Range
State: Nevada
Date: 07/10/15
President: B. Obama
Mojave Trails
State: California
Date: 02/12/16
President: B. Obama
Sand to Snow
State: California
Date: 02/12/16
President: B. Obama
Castle Mountains
State: California
Date: 02/12/16
President: B. Obama
Belmont-Paul Women's Equality
State: Washington, D.C.
Date: 02/12/16
President: B. Obama
Stonewall
State: New York
Date: 06/24/16
President: B. Obama
Katahdin Woods and Waters
State: Maine
Date: 08/24/16
President: B. Obama
Northeast Canyons and Seamounts
State: Massachusetts
Date: 09/15/16
President: B. Obama
Bears Ears
State: Utah
Date: 12/28/16
President: B. Obama
Gold Butte
State: Nevada
Date: 12/28/16
President: B. Obama
Birmingham Civil Rights
State: Alabama
Date: 01/12/17
President: B. Obama
Freedom Riders
State: Alabama
Date: 01/12/17
President: B. Obama
Reconstruction Era
State: South Carolina
Date: 01/12/17
President: B. Obama
Camp Nelson
State: Kentucky
Date: 10/26/18
President: D. Trump
Camp Hale-Continental Divide
State: Colorado
Date: 10/12/22
President: J. Biden
Avi Kwa Ame
State: Nevada
Date: 3/21/23
President: J. Biden
Castner Range
State: Texas
Date: 3/21/23
President: J. Biden
Emmett Till & Mamie Till-Mobley
State: Illinois/Mississippi
Date: 7/25/23
President: J. Biden
Baaj Nwaavjo I’tah Kukveni - Ancestral Footprints of the Grand Canyon
State: Arizona
Date: 8/8/2023
President: J.Biden