List of U.S. National Monuments
| Site Name | Size (sq.miles) | State | Founded |
|---|---|---|---|
| (Fort Moultrie)* | .01 | South Carolina | 1960 |
| Admiralty Island | 1,529.49 | Alaska | 1978 |
| African Burial Ground | .00 | New York | 1992 |
| Agate Fossil Beds | 4.78 | Nebraska | 1965 |
| Agua Fria | 113.04 | Arizona | 2000 |
| Alibates Flint Quarries | 2.14 | Texas | 1965 |
| Aniakchak | 214.34 | Alaska | 1978 |
| Aztec Ruins | .50 | New Mexico | 1923 |
| Bandelier | 52.62 | New Mexico | 1916 |
| Booker T. Washington | .37 | Virginia | 1956 |
| Buck Island Reef | 29.71 | U.S. Virgin Islands | 1961 |
| Cabrillo | .25 | California | 1913 |
| California Coastal | .95 | California | 2000 |
| Canyon de Chelly | 131.00 | Arizona | 1931 |
| Canyons of the Ancients | 286.14 | Colorado | 2000 |
| Cape Krusenstern | 1,014.19 | Alaska | 1978 |
| Capulin Volcano | 1.24 | New Mexico | 1916 |
| Carrizo Plain | 385.64 | California | 2001 |
| Casa Grande Ruins | .74 | Arizona | 1889 |
| Cascade-Siskiyou | 137.65 | Oregon | 2000 |
| Castillo de San Marcos | .03 | Florida | 1924 |
| Castle Clinton | .00 | New York | 1946 |
| Cedar Breaks | 9.62 | Utah | 1933 |
| Charles Young Buffalo Soldiers | .09 | Ohio | 2013 |
| Chiricahua | 18.73 | Arizona | 1924 |
| Colorado | 32.08 | Colorado | 1911 |
| Craters Of The Moon | 1,175.50 | Idaho | 1924 |
| Devils Postpile | 1.25 | California | 1911 |
| Devils Tower | 2.10 | Wyoming | 1906 |
| Dinosaur | 328.57 | Utah | 1915 |
| Effigy Mounds | 3.95 | Iowa | 1949 |
| El Malpais | 178.56 | New Mexico | 1987 |
| El Morro | 2.00 | New Mexico | 1906 |
| First State | 1.73 | Delaware | 2013 |
| Florissant Fossil Beds | 9.37 | Colorado | 1969 |
| Fort Frederica | .44 | Georgia | 1936 |
| Fort Matanzas | .47 | Florida | 1924 |
| Fort McHenry | .51 | Maryland | 1925 |
| Fort Monroe | .07 | Virginia | 2011 |
| Fort Ord | 22.89 | California | 2012 |
| Fort Pulaski | 8.79 | Georgia | 1924 |
| Fort Stanwix | .02 | New York | 1935 |
| Fort Sumter | .37 | South Carolina | 1948 |
| Fort Union | 1.13 | New Mexico | 1954 |
| Fossil Butte | 12.81 | Wyoming | 1972 |
| George Washington Birthplace | 1.03 | Virginia | 1930 |
| George Washington Carver | .33 | Missouri | 1943 |
| Giant Sequoia | 512.14 | California | 2000 |
| Gila Cliff Dwellings | .83 | New Mexico | 1907 |
| Governors Island | .04 | New York | 2001 |
| Grand Canyon-Parashant | 1,638.00 | Arizona | 2000 |
| Grand Portage | 1.11 | Minnesota | 1951 |
| Grand Staircase-Escalante | 2,937.66 | Utah | 1996 |
| Hagerman Fossil Beds | 6.80 | Idaho | 1988 |
| Hanford Reach | 304.69 | Washington | 2000 |
| Harriet Tubman Underground Railroad | 18.36 | Maryland | 2013 |
| Hohokam Pima | 2.64 | Arizona | 1972 |
| Homestead | .33 | Nebraska | 1936 |
| Hovenweep | 1.23 | Colorado | 1923 |
| Ironwood Forest | 294.72 | Arizona | 2000 |
| Jewel Cave | 1.99 | South Dakota | 1908 |
| John Day Fossil Beds | 21.97 | Oregon | 1974 |
| Kasha-Katuwe Tent Rocks | 8.44 | New Mexico | 2001 |
| Lava Beds | 72.96 | California | 1925 |
| Little Bighorn Battlefield | 1.20 | Montana | 1940 |
| Marianas Trench | .00 | Pennsylvania | 2009 |
| Misty Fjords | 3,583.46 | Alaska | 1978 |
| Montezuma Castle | 1.34 | Arizona | 1906 |
| Mount Saint Helens | 175.93 | Washington | 1982 |
| Muir Woods | .86 | California | 1908 |
| Natural Bridges | 11.93 | Utah | 1908 |
| Navajo | .56 | Arizona | 1909 |
| Newberry | 85.66 | Oregon | 1990 |
| Ocmulgee | 1.10 | Georgia | 1934 |
| Oregon Caves | .76 | Oregon | 1909 |
| Organ Pipe Cactus | 516.70 | Arizona | 1937 |
| Pacific Remote Islands | 12.08 | Pennsylvania | 2009 |
| Papahanaumokuakea | 5.02 | Hawaii | 1909 |
| Petroglyph | 11.77 | New Mexico | 1990 |
| Pipe Spring | .06 | Arizona | 1923 |
| Pipestone | .44 | Minnesota | 1937 |
| Pompeys Pillar | .08 | Montana | 2001 |
| Poverty Point | 1.42 | Louisiana | 1988 |
| Prehistoric Trackways | 8.21 | New Mexico | 2009 |
| President Lincoln and Soldiers' Home | .00 | Washington D.C. | 1973 |
| Rainbow Bridge | .25 | Utah | 1910 |
| Rio Grande Del Norte | 378.99 | New Mexico | 2013 |
| Rose Atoll | .03 | American Samoa | 2009 |
| Russell Cave | .49 | Alabama | 1961 |
| Salinas Pueblo Missions | 1.67 | New Mexico | 1909 |
| San Juan Islands | 1.52 | Washington | 2013 |
| Santa Rosa and San Jacinto Mountains | 437.61 | California | 2000 |
| Scotts Bluff | 4.70 | Nebraska | 1919 |
| Sonoran Desert | 775.62 | Arizona | 2001 |
| Statue of Liberty | .10 | New York | 1924 |
| Sunset Crater Volcano | 4.75 | Arizona | 1930 |
| Timpanogos Cave | .39 | Utah | 1922 |
| Tonto | 1.75 | Arizona | 1907 |
| Tuzigoot | 1.27 | Arizona | 1939 |
| Upper Missouri River Breaks | 774.14 | Montana | 2001 |
| Vermillion Cliffs | 458.89 | Arizona | 2000 |
| Virgin Islands Coral Reef | 19.86 | U.S. Virgin Islands | 2001 |
| Walnut Canyon | 5.51 | Arizona | 1915 |
| White Sands | 224.58 | New Mexico | 1933 |
| World War II Valor in the Pacific | .09 | Hawaii | 1962 |
| Wupatki | 55.35 | Arizona | 1924 |
| Yucca House | .05 | Colorado | 1919 |