List of national monuments of the United States
List of national monuments

List of national monuments of the United States

Section Title: List of national monuments
Table Section Text: None

Name	Image	Agency	Location	Date established	Area	Visitors (2018)	Description

Admiralty Island	-	USFS	Alaska 57°38′N 134°21′W / 57.64°N 134.35°W	December 1, 1978	1,019,861 acres (4,127.2 km2)	Occupying most of Admiralty Island, the 7th largest in the United States, this monument is part of Tongass National Forest in Southeast Alaska.

African Burial Ground	-	NPS	New York 40°42′52″N 74°00′15″W / 40.7144°N 74.0042°W	February 27, 2006	0.35 acres (0.001 km2)	45,035	Re-discovered in 1991 during excavations for a new federal building, this former burial ground that contains the remains of more than 400 free and enslaved Africans buried during the 17th and 18th centuries was designated a National Historic Landmark memorial in 1993.

Agate Fossil Beds	-	NPS	Nebraska 42°24′58″N 103°43′41″W / 42.416°N 103.728°W	June 14, 1997	3,057.87 acres (12.4 km2)	16,238	The valley of the Niobrara River is known for its large number of well-preserved Miocene mammal fossils which date from about 20 million years ago.

Agua Fria	-	BLM	Arizona 34°09′N 112°05′W / 34.15°N 112.08°W	January 11, 2000	70,980 acres (287.2 km2)	Located around the canyon of the Agua Fria River, it contains more than 450 distinct Native American structures, including large pueblos with more than 100 rooms.

Aleutian Islands World War II	-	FWS	Alaska 52°52′N 173°10′W / 52.87°N 173.16°W	December 5, 2008	4,950 acres (20.0 km2)	During World War II Japan briefly occupied Attu Island and Kiska Island in the Aleutian chain. The monument includes the site of the 19-day battle to reclaim Attu, artifacts of the occupation at Kiska, and the crash site of a U.S.

Alibates Flint Quarries	-	NPS	Texas 35°34′N 101°40′W / 35.57°N 101.67°W	August 21, 1965	1,370.97 acres (5.5 km2)	7,415	Alibates was the quarry site for high-quality, rainbow-hued flint that was distributed throughout the Great Plains in pre-Columbian times. It is jointly operated with the Lake Meredith National Recreation Area and includes the ruins of several Plains Village Indian dwellings.

Aniakchak	-	NPS	Alaska 56°54′N 158°09′W / 56.9°N 158.15°W	December 1, 1978	137,176 acres (555.1 km2)	100	Mount Aniakchak, which erupted 3,500 years ago, and the surrounding region make up one of the least visited NPS sites. Surprise Lake, within the volcano's 6-mile (9.7 km) wide, 2,500-foot (760 m) deep caldera, is the source of the Aniakchak River.

Aztec Ruins	Aztec nima1.JPG	NPS	New Mexico 36°50′N 107°00′W / 36.83°N 107.00°W	January 24, 1923	318.4 acres (1.3 km2)	54,933	The ruins contain Pueblo structures from the 11th to 13th centuries with more than 400 masonry rooms which were misidentified by early American settlers as Aztec.

Bandelier	-	NPS	New Mexico 35°47′N 106°16′W / 35.78°N 106.27°W	February 11, 1916	33,676.67 acres (136.3 km2)	198,441	Frijoles Canyon contains Ancestral Pueblo homes, kivas, rock paintings and petroglyphs. The Pueblo structures made of volcanic tuff date to 1150 CE, with other artifacts more than 11,000 years old.

Basin and Range	-	BLM	Nevada 37°54′N 115°24′W / 37.9°N 115.4°W	July 10, 2015	703,585 acres (2,847.3 km2)	The remote Mount Irish, Seaman, and Golden Gate Ranges surround the Garden and Coal Valleys and White River Narrows and are home to many desert species and 4,000-year-old rock art.

Bears Ears	-	BLM, USFS	Utah 37°38′N 109°52′W / 37.63°N 109.86°W	December 28, 2016	201,876 acres (817.0 km2)	The Bears Ears are a pair of buttes that rise above sandstone canyons and mesas. Other points of geologic interest include the twin Six Shooter dome-shaped peaks, striated sandstone pinnacles, and natural arches.

Belmont-Paul Women's Equality	Sewall-Belmont House.JPG	NPS	District of Columbia 38°53′N 77°00′W / 38.89°N 77.00°W	April 12, 2016	0.34 acres (0.001 km2)	9,081	Home of the National Woman's Party since 1929, this Adam Federal style house near the US Capitolwas the home where party leader Alice Paul and others lived and worked.

Berryessa Snow Mountain	Berryessa Snow Mountain National Monument.JPG	USFS, BLM	California 39°13′N 122°46′W / 39.22°N 122.77°W	July 10, 2015	330,780 acres (1,338.6 km2)	Fewer than 100 miles (160 km) from the San Francisco Bay Area, Berryessa Snow Mountain protects part of the California Coast Range, one of the most biodiverse regions in the state, home to elk, osprey, river otters, half the state's dragonfly species, and California's second-largest population of wintering bald eagles.

Birmingham Civil Rights	A.G. Gaston Motel, Birmingham, Alabama LCCN2010636968.tif	NPS	Alabama 33°30′47″N 86°48′54″W / 33.513°N 86.815°W	January 12, 2017	0.88 acres (0.004 km2)	Preserves the A. G.

Booker T. Washington	Booker T. Washington National Monument, Hardy, Virginia LCCN2011630618.tif	NPS	Virginia 37°07′23″N 79°45′58″W / 37.123°N 79.766°W	April 2, 1956	239.01 acres (1.0 km2)	22,732	The Booker T. Washington National Monument preserves portions of the 207-acre (0.84 km2) tobacco farm on which educator and civil rights leader Booker T.

Browns Canyon	-	BLM, USFS	Colorado 38°36′54″N 106°03′32″W / 38.615°N 106.059°W	February 19, 2015	21,604 acres (87.4 km2)	Protects 21,500 acres of steep cliffs and colorful rock outcroppings overlooking the Arkansas River in Chaffee County, Colorado, as well as the area's rich native history.

Buck Island Reef	-	NPS	US Virgin Islands 17°47′N 64°37′W / 17.79°N 64.62°W	December 28, 1961	19,015.47 acres (77.0 km2)	31,411	Most of this 19,000-acre (77 km2) monument is underwater, containing a large elkhorn coral barrier reef that provides cover for a great variety of reef fish, sea turtles and least terns.

Cabrillo	-	NPS	California 32°40′N 117°14′W / 32.67°N 117.24°W	October 14, 1913	159.94 acres (0.6 km2)	842,104	This monument commemorates the landing of Juan Rodríguez Cabrillo at San Diego Bay on September 28, 1542, which was the first European expedition to what later became the West Coast of the U.S.

California Coastal	-	BLM	California 36°53′N 122°11′W / 36.89°N 122.18°W	January 11, 2000	2,628 acres (10.6 km2)	This monument ensures the protection of all of the more than 20,000 islets, reefs and rock outcroppings from the coast of California to a distance of 12 nautical miles (22 km), along the entire 840-mile (1,350 km) long California coastline.

Camp Nelson Heritage	Camp Nelson landscape.JPG	NPS	Kentucky 37°47′N 84°36′W / 37.78°N 84.60°W	October 26, 2018	373 acres (1.5 km2)	Established in 1863 as a depot for the Union Army during the Civil War, Camp Nelson became a large recruitment center for African American Union soldiers: a key site of emancipation for those soldiers and a refugee camp for their families.

Canyon de Chelly	-	NPS	Arizona 36°08′N 109°28′W / 36.13°N 109.47°W	April 1, 1931	83,840 acres (339.3 km2)	439,306	Located within the boundaries of the Navajo Nation, it preserves the valleys and rims of Canyon de Chelly, Canyon del Muerto, and Monument Canyon.

Canyons of the Ancients	-	BLM	Colorado 37°22′N 109°00′W / 37.37°N 109°W	June 9, 2000	176,370 acres (713.7 km2)	Surrounding Hovenweep National Monument, it preserves and protects more than 6,000 archeological sites, the largest concentration in the U.S. These include Lowry Pueblo, dating to 1103 AD, and Painted Hand Pueblo built by the Ancestral Puebloans

Cape Krusenstern	-	NPS	Alaska 67°25′N 163°30′W / 67.41°N 163.50°W	December 1, 1978	649,096.15 acres (2,626.8 km2)	Co-located with the NHLD Cape Krusenstern Archeological District, this coastal plain contains large lagoons and rolling hills of limestone. The bluffs record thousands of years of change in the shorelines of the Chukchi Sea, as well as evidence of some 9,000 years of human habitation.

Capulin Volcano	-	NPS	New Mexico 36°47′N 103°58′W / 36.79°N 103.96°W	August 9, 1916	792.84 acres (3.2 km2)	67,411	Capulin is an extinct cinder cone volcano that is approximately 59,000 years old and part of the Raton-Clayton Volcanic Field. The crater is 400 feet (120 m) deep and its rim is more than 1,500 feet (460 m) in diameter.

Carrizo Plain	-	BLM	California 35°10′N 119°45′W / 35.16°N 119.75°W	January 12, 2001	211,045 acres (854.1 km2)	Carrizo Plain is the largest single native grassland remaining in California. It contains part of the San Andreas Fault and is surrounded by the Temblor Range and the Caliente Range.

Casa Grande Ruins	-	NPS	Arizona 32°59′N 111°32′W / 32.99°N 111.54°W	August 3, 1918	472.5 acres (1.9 km2)	62,995	This monument preserves a group of structures surrounded by a compound wall in the Gila Valley that were built in the early 13th century.

Cascade–Siskiyou	-	BLM	Oregon, California 42°05′N 122°28′W / 42.08°N 122.46°W	June 9, 2000	65,341 acres (264.4 km2)	One of the most diverse ecosystems found in the Cascade Range, it has more than 100 dwelling and root-gathering sites belonging to the Modoc, Klamath, and Shasta tribes.

Castillo de San Marcos	-	NPS	Florida 29°53′53″N 81°18′40″W / 29.898°N 81.311°W	October 15, 1924	19.38 acres (0.1 km2)	748,058	This Spanish fort near St. Augustine, called Fort Marion when first protected, served for 205 years under four different flags.

Castle Clinton	Castleclinton.JPG	NPS	New York 40°42′13″N 74°01′01″W / 40.7036°N 74.0169°W	August 12, 1946	1 acre (0.004 km2)	4,533,564	A circular sandstone fort built in 1811 at the southern tip of Manhattan to protect New York City from the British, Castle Clinton is now located in Battery Park.

Castle Mountains	-	NPS	California 35°15′N 115°07′W / 35.25°N 115.11°W	February 12, 2016	21,025.5 acres (85.1 km2)	Castle Mountains represents some of the most unique elements of the Mojave Desert. Nestled between the Nevada state line and Mojave National Preserve, the nearly 21,000 acres of Castle Mountains boasts Joshua tree forests, unbroken natural landscapes, rare desert grasslands, and rich human history.

Cedar Breaks	-	NPS	Utah 37°38′N 112°51′W / 37.63°N 112.85°W	August 22, 1933	6,154.6 acres (24.9 km2)	644,515	A natural amphitheater canyon similar to formations at Bryce Canyon National Park, it stretches over 3 miles (4.8 km) and is more than 2,000 feet (610 m) deep.

César E. Chávez	-	NPS	California 35°13′38″N 118°33′41″W / 35.2273°N 118.5614°W	October 8, 2012	116.56 acres (0.5 km2)	12,769	This monument commemorates the life and work of labor leader and civil right activist Cesar Chavez. Called La Paz, the site was Chavez's home for about 20 years, and his gravesite is on the premises.

Charles Young Buffalo Soldiers	-	NPS	Ohio 39°42′26″N 83°53′25″W / 39.7072°N 83.8903°W	March 25, 2013	59.66 acres (0.2 km2)	31,448	Charles Young was the first African American to reach the rank of colonel in the US Army. He was also the first national park superintendent, of Sequoia and General Grant National Parks, and a professor at Wilberforce University.

Chimney Rock	View of Chimney Rock Colorado.JPG	USFS	Colorado 37°11′30″N 107°18′23″W / 37.1917°N 107.3064°W	September 21, 2012	4,724 acres (19.1 km2)	The jewel of San Juan National Forest, the site was once home to the ancestors of the modern Pueblos. Roughly 1,000 years ago, the Ancestral Pueblo People built more than 200 homes and ceremonial buildings high above the valley floor.

Chiricahua	-	NPS	Arizona 32°01′N 109°21′W / 32.02°N 109.35°W	April 18, 1924	12,024.73 acres (48.7 km2)	60,577	These pillars of rhyolite tuff are the eroded remains of an immense volcanic eruption that shook the region some 27 million years ago.

Colorado	-	NPS	Colorado 39°02′N 108°41′W / 39.04°N 108.69°W	May 24, 1911	20,536.39 acres (83.1 km2)	375,467	Monument Canyon runs the width of the park and includes rock formations formed by erosion. The monument includes 20,500 acres (83 km2) of semi-desert land high on the Colorado Plateau and has a wide range of wildlife including pinyon pines, juniper trees, ravens, jays, desert bighorn sheep, and coyotes as well as a range of recreational activities.

Craters of the Moon	-	NPS, BLM	Idaho 43°25′N 113°31′W / 43.42°N 113.52°W	May 2, 1924	53,437.64 acres (216.3 km2)	263,506	One of the best preserved flood basalt areas in the continental U.S. contains three lava fields along the Great Rift of Idaho as well as the world's deepest open rift cracks and other volcanic features.

Devils Postpile	-	NPS	California 37°30′N 119°05′W / 37.50°N 119.08°W	July 6, 1911	800.19 acres (3.2 km2)	139,724	Once part of Yosemite National Park, this monument is a dark cliff of columnar basalt created by a lava flow at least 100,000 years ago.

Devils Tower	-	NPS	Wyoming 44°35′N 104°43′W / 44.59°N 104.72°W	September 24, 1906	1,347.21 acres (5.5 km2)	468,216	The tower is a monolithic igneous intrusion of volcanic neck rising dramatically 1,267 feet (386 m) above the surrounding terrain. Proclaimed by Theodore Roosevelt, this was the first national monument.

Dinosaur	-	NPS	Colorado, Utah 40°32′N 108°59′W / 40.53°N 108.98°W	October 4, 1915	210,281.92 acres (851.0 km2)	304,468	This sandstone and conglomerate bed at the confluence of the Green and Yampa Rivers was formed in the Jurassic Period and contains fossils of dinosaurs including Allosaurus and various long-neck and long-tail sauropods.

Effigy Mounds	Effigy Mounds Iowa Sny Magill.JPG	NPS	Iowa 43°05′N 91°11′W / 43.09°N 91.19°W	October 25, 1949	2,526.39 acres (10.2 km2)	55,576	This monument preserves three prehistoric sites with 206 prehistoric mounds, notable for 31 unusual mounds in the shape of mammals, birds, or reptiles.

El Malpais	ElMalpaisLava.JPG	NPS	New Mexico 34°53′N 108°03′W / 34.88°N 108.05°W	December 31, 1987	114,347.11 acres (462.7 km2)	154,368	An extremely rough, rugged lava flow covers much of the park, filling a large basin rimmed by higher sandstone that forms large, wind-carved bluffs.

El Morro	-	NPS	New Mexico 35°02′N 108°21′W / 35.04°N 108.35°W	December 8, 1906	1,278.72 acres (5.2 km2)	65,453	On the site of an ancient east-west trail is a great sandstone promontory with a pool of water at its base.

Florissant Fossil Beds	-	NPS	Colorado 38°55′N 105°16′W / 38.92°N 105.27°W	August 20, 1969	6,300 acres (25.5 km2)	79,568	Huge petrified redwoods and incredibly detailed fossils of ancient insects and plants reveal a very different landscape in Colorado of almost 35 million years ago in the Eocene age.

Fort Frederica	-	NPS	Georgia 31°13′26″N 81°23′35″W / 31.224°N 81.393°W	May 26, 1936	305 acres (1.2 km2)	183,591	Built by James Oglethorpe between 1736 and 1748, these remnants of a fort and town protected the southern boundary of the British colony of Georgia from Spanish raids.

Fort Matanzas	-	NPS	Florida 29°42′54″N 81°14′20″W / 29.715°N 81.239°W	October 15, 1924	300.11 acres (1.2 km2)	608,103	This 1740 Spanish fort guarded Matanzas Inlet, the southern mouth of the Matanzas River, which allowed access to St. Augustine.

Fort McHenry	-	NPS	Maryland 39°15′47″N 76°34′44″W / 39.263°N 76.579°W	March 3, 1925	43.26 acres (0.2 km2)	486,113	The only place designated a national monument and historic shrine, Fort McHenry is a star-shaped fort best known for its role in the War of 1812 when it successfully defended Baltimore Harbor from an attack by the British navy.

Fort Monroe	-	NPS	Virginia 37°00′14″N 76°18′29″W / 37.004°N 76.308°W	November 1, 2011	367.12 acres (1.5 km2)	The six-sided star fort spans the American story from the 17th to the 21st centuries: Captain John Smith's journeys, a haven of freedom for the enslaved during the Civil War, and a bastion of defense for the Chesapeake Bay.

Fort Ord	-	BLM	California 36°38′21″N 121°44′07″W / 36.639167°N 121.735278°W	April 20, 2012	14,658 acres (59.3 km2)	Fort Ord was an Army post from 1917 to 1994. It now has recreational trails and various wildlife in grassland, chaparral, and woodland ecosystems.

Fort Pulaski	-	NPS	Georgia 32°01′37″N 80°53′24″W / 32.027°N 80.890°W	October 15, 1924	5,623.1 acres (22.8 km2)	419,930	In 1862 during the American Civil War, the Union Army successfully tested a rifled cannon against the defending Confederates, rendering brick fortifications obsolete.

Fort Stanwix	-	NPS	New York 43°13′05″N 75°27′32″W / 43.218°N 75.459°W	August 21, 1935	15.52 acres (0.1 km2)	90,507	Fort Stanwix guarded a strategic 18th century portage known as the Oneida Carrying Place. It was built during the French and Indian War (1754–1763).

Fort Union	Fortunion.JPG	NPS	New Mexico 35°55′30″N 105°00′32″W / 35.925°N 105.009°W	April 5, 1956	720.6 acres (2.9 km2)	10,860	A frontier military post and supply depot in the late 19th century, it sat at the intersection of the Mountain and Cimarron Branches of the old Santa Fe Trail.

Fossil Butte	-	NPS	Wyoming 41°52′N 110°46′W / 41.86°N 110.77°W	October 23, 1972	8,198 acres (33.2 km2)	21,349	Fossil Butte preserves the 50-million-year-old Green River lake beds, the best paleontological record of tertiary aquatic communities in North America. Fossils including fish, alligators, bats, turtles, dog-sized horses, insects, and many other species of plants and animals suggest that the region was a low, subtropical, freshwater basin when the sediments accumulated, over about a 2-million-year period.

Freedom Riders	-	NPS	Alabama 33°39′29″N 85°49′52″W / 33.658°N 85.831°W	January 12, 2017	5.96 acres (0.02 km2)	Preserves two sites in and near Anniston, Alabama during the civil rights movement—a former Greyhound bus station in the town where Freedom Riders were attacked by a racist mob and the site outside town where their bus was burned.

George Washington Birthplace	-	NPS	Virginia 38°11′10″N 76°55′50″W / 38.1861°N 76.9305°W	January 23, 1930	653.18 acres (2.6 km2)	111,058	Representative of 18th-century Virginia tobacco farms, this site is the birthplace and boyhood environment of George Washington. The entrance includes a Memorial Shaft obelisk of Vermont marble that is a one-tenth scale replica of the Washington Monument in Washington, D.C.

George Washington Carver	-	NPS	Missouri 36°59′10″N 94°21′14″W / 36.986°N 94.354°W	July 14, 1943	210 acres (0.8 km2)	44,411	The site preserves Moses Carver's farm, which was the boyhood home of George Washington Carver, a scientist and educator who developed many uses for peanuts.

Giant Sequoia	-	USFS	California 36°02′N 118°30′W / 36.04°N 118.50°W	April 15, 2000	352,626 acres (1,427.0 km2)	The monument includes 38 of the 39 giant sequoia groves in the Sequoia National Forest, amounting to about half of the sequoia groves currently in existence.

Gila Cliff Dwellings	Gila Cliff Dwellings National Monument 11.JPG	NPS	New Mexico 33°14′N 108°17′W / 33.24°N 108.28°W	November 16, 1907	533.13 acres (2.2 km2)	79,108	Located within the Gila Wilderness, the people of the Mogollon culture lived in these cliff dwellings 180 feet (55 m) above the canyon floor from the 1280s through the early 14th century.

Gold Butte	-	BLM	Nevada 36°16′52″N 114°12′04″W / 36.281°N 114.201°W	December 28, 2016	296,937 acres (1,201.7 km2)	Mojave Desert landscape of dramatic red sandstone, canyons, forested mountains, ancient rock art, rock shelters, roasting pits, and a mining ghost town

Governors Island	-	NPS	New York 40°41′28″N 74°00′58″W / 40.691°N 74.016°W	January 19, 2001	22.91 acres (0.1 km2)	589,798	From 1783 to 1966, Governors Island in New York Harbor was an Army post, and from 1966 to 1996 it was a Coast Guard installation.

Grand Canyon-Parashant	-	BLM, NPS	Arizona 36°24′N 113°42′W / 36.4°N 113.7°W	January 11, 2000	1,021,030 acres (4,132.0 km2)	Located on the northern rim of the Grand Canyon, this diverse landscape includes an array of scientific and historic resources. About 20,000 of the monument's 1,017,000 acres (4,120 km2) are also within Lake Mead National Recreation Area; Grand Canyon-Parashant is not considered an official NPS unit.

Grand Portage	-	NPS	Minnesota 47°58′N 89°41′W / 47.96°N 89.68°W	January 27, 1960	709.97 acres (2.9 km2)	94,137	The Grand Portage itself is an 8.5-mile (13.7 km) footpath which bypasses a set of waterfalls on the Pigeon River near Lake Superior.

Grand Staircase-Escalante	-	BLM	Utah 37°24′N 111°41′W / 37.4°N 111.68°W	September 18, 1996	1,003,863 acres (4,062.5 km2)	Preserving 1,003,863 acres (4,062.49 km2), the monument consists of the Grand Staircase, the Kaiparowits Plateau, and the Canyons of the Escalante.

Hagerman Fossil Beds	-	NPS	Idaho 42°47′N 114°57′W / 42.79°N 114.95°W	November 18, 1988	4,351.15 acres (17.6 km2)	26,477	This monument contains the largest concentration of Hagerman horse fossils in North America. It protects the world's richest known fossil deposits from the late Pliocene epoch, 3.5 million years ago.

Hanford Reach	-	FWS, DOE	Washington 46°29′N 119°32′W / 46.48°N 119.53°W	June 8, 2000	194,450.93 acres (786.9 km2)	Created from what used to be the security buffer surrounding the Hanford Nuclear Reservation, this area has been untouched by development or agriculture since 1943.

Harriet Tubman Underground Railroad	Stewart's Canal - Harriet Tubman Underground RR NM.JPG	FWS	Maryland	March 25, 2013	480 acres (1.9 km2)	Harriet Tubman was a famed conductor on the Underground Railroad, leading dozens of slaves to freedom. This monument includes sites relating to Tubman's life, including the slave-built Stewart's Canal and the home of Jacob Jackson.

Hohokam Pima	-	NPS	Arizona 33°11′N 111°55′W / 33.19°N 111.91°W	October 21, 1972	1,690 acres (6.8 km2)	Hohokam Pima is part of the Gila River Indian Community and not open to the public. The monument preserves the Snaketown-Settlement, archeological remains of the Hohokam culture, which lived in the area until 1500.

Homestead	-	NPS	Nebraska 40°17′06″N 96°49′19″W / 40.285°N 96.822°W	March 19, 1936	211.09 acres (0.9 km2)	68,091	Daniel Freeman's homestead was recognized by the United States Congress as the first homestead in the nation obtained through the Homestead Act of 1862.

Hovenweep	Squaretower.JPG	NPS	Colorado, Utah 37°23′N 109°05′W / 37.38°N 109.08°W	March 2, 1923	784.93 acres (3.2 km2)	40,574	Hovenweep contains six clusters of Native American ruins. Holly Canyon, Hackberry Canyon, Cutthroat Castle and Goodman Point are in Colorado and Square Tower and Cajon are in Utah.

Ironwood Forest	-	BLM	Arizona 32°28′N 111°34′W / 32.46°N 111.57°W	June 9, 2000	129,055 acres (522.3 km2)	Located within the Sonoran Desert, significant concentrations of ironwood (Olneya tesota) trees and two endangered animal and plant species are found within the monument.

Jewel Cave	-	NPS	South Dakota 43°44′N 103°50′W / 43.73°N 103.83°W	February 7, 1908	1,273.51 acres (5.2 km2)	142,356	Jewel Cave is the third longest cave in the world, with more than 195 miles (314 km) of mapped passageways beneath the Black Hills of South Dakota.

John Day Fossil Beds	-	NPS	Oregon 44°40′N 120°03′W / 44.67°N 120.05°W	October 26, 1974	14,062.02 acres (56.9 km2)	204,621	Located within the John Day River Basin, the Fossil Beds have a well-preserved, complete record of fossil plants and animals from more than 40 of the 65 million years of the Cenozoic Era.

Jurassic	-	BLM	Utah 39°19′N 110°41′W / 39.32°N 110.69°W	March 12, 2019	850 acres (3.4 km2)	More than 12,000 bones from at least 74 dinosaurs have been found at the Cleveland-Lloyd Dinosaur Quarry so far, making it the paleontological site with the greatest concentration of bones from the Jurassic period.

Kasha-Katuwe Tent Rocks	-	BLM	New Mexico 35°40′N 106°25′W / 35.67°N 106.42°W	January 17, 2001	4,647 acres (18.8 km2)	Kasha-Katuwe is known for its geology of layers of volcanic rock and ash deposited by a volcanic explosion. Over time, weathering and erosion of these layers has created canyons and tent rocks.

Katahdin Woods and Waters	-	NPS	Maine 45°58′N 68°37′W / 45.97°N 68.62°W	August 24, 2016	87,564.27 acres (354.4 km2)	Katahdin Woods and Waters National Monument protects mountains and wilderness in the North Maine Woods, including a section of the East Branch Penobscot River.

Lava Beds	-	NPS	California 41°43′N 121°31′W / 41.71°N 121.51°W	November 21, 1925	46,692.42 acres (189.0 km2)	127,771	This is the site of the largest concentration of lava tube caves in North America. It also includes Petroglyph Point, one of the largest panels of Native American rock art.

Little Bighorn Battlefield	-	NPS	Montana 45°34′N 107°26′W / 45.57°N 107.43°W	July 1, 1940	765.34 acres (3.1 km2)	272,591	The 1876 Battle of the Little Bighorn between George Armstrong Custer's 7th Cavalry and a combined Lakota Sioux,Northern Cheyenne and Arapaho force led by Sitting Bull and Crazy Horse took place here.

Marianas Trench Marine	-	NOAA, FWS	Northern Mariana Islands, Guam 20°N 145°E / 20°N 145°E	January 6, 2009	61,077,668 acres (247,172.6 km2)	This marine monument includes the waters and submerged lands of the three northernmost islands of the Mariana Archipelago, the submerged lands of 21 designated volcanic sites, and the Mariana Trench, the deepest place on Earth.

Medgar and Myrlie Evers Home	-	NPS	Mississippi 32°20′28″N 90°12′47″W / 32.341°N 90.213°W	March 12, 2019	Medgar Evers was a civil rights activist who served as a field secretary for the NAACP to end segregation and promote voting rights in Mississippi.

Military Working Dog Teams	-	DOD	Texas 29°23′24″N 98°37′01″W / 29.390°N 98.617°W	October 28, 2013	The monument at Lackland Air Force Base, the home of the U.S. Department of Defense Military Working Dog Program, honors the efforts and sacrifices of military working dogs in the service of the United States.

Mill Springs Battlefield	Rows of white headstones near small hills	NPS	Kentucky 37°04′N 84°44′W / 37.07°N 84.74°W	March 12, 2019	The Battle of Mill Springs was fought at this site in January 1862 and was the first major victory for the Union Army.

Misty Fjords	-	USFS	Alaska 55°37′N 130°37′W / 55.62°N 130.61°W	December 1, 1978	2,294,072 acres (9,283.8 km2)	Located within the Tongass National Forest and called The Yosemite of the North for its similar geology, it also contains the Quartz Hill molybdenum deposit, possibly the largest such mineral deposit in the world.

Mojave Trails	-	BLM	California 34°36′N 116°00′W / 34.6°N 116.0°W	February 12, 2016	1,600,000 acres (6,475.0 km2)	The Mojave Trails National Monument includes several rugged mountain ranges, ancient lava flows at the Amboy Crater, and the Cadiz Dunes.

Montezuma Castle	-	NPS	Arizona 34°37′N 111°50′W / 34.61°N 111.84°W	December 8, 1906	1,015.52 acres (4.1 km2)	390,151	Montezuma Castle features cliff dwellings built by the Pre-Columbian Sinagua people between 1100 and 1400 AD. The site's name is a misnomer as is it has no connection to Montezuma.

Mount St. Helens	-	USFS	Washington 46°14′N 122°11′W / 46.23°N 122.18°W	August 27, 1982	113,205 acres (458.1 km2)	Following the 1980 eruption of the now-8,363-foot-tall (2,549 m) Mount St. Helens, the environment was left to respond naturally to the disturbance.

Muir Woods	-	NPS	California 37°53′N 122°35′W / 37.89°N 122.58°W	January 9, 1908	553.55 acres (2.2 km2)	957,932	Part of the Golden Gate National Recreation Area, it protects one of the last old growth Coast redwood (Sequoia sempervirens) groves in the San Francisco Bay Area as well as one of the most easily accessed.

Natural Bridges	-	NPS	Utah 37°35′N 110°00′W / 37.58°N 110°W	April 16, 1908	7,636.49 acres (30.9 km2)	103,118	Located at the junction of White Canyon and Armstrong Canyon, it is part of the Colorado River drainage. It features the second- and third-largest natural bridges in the western hemisphere, carved from the white Triassic sandstone of the Cedar Mesa Formation that gives White Canyon its name.

Navajo	-	NPS	Arizona 36°41′N 110°32′W / 36.68°N 110.53°W	March 20, 1909	360 acres (1.5 km2)	61,195	This monument preserves three of the most intact cliff dwellings of the Ancestral Puebloan people. The monument is high on the Shonto plateau, overlooking the Tsegi Canyon system on the Navajo Nation in Northern Arizona.

Newberry	-	USFS	Oregon 43°41′N 121°15′W / 43.69°N 121.25°W	November 5, 1990	57,323 acres (232.0 km2)	Located within Deschutes National Forest, the monument protects the area around the Newberry Volcano and its geologic features including Lava Butte and the Lava River Cave.

Northeast Canyons and Seamounts Marine	-	NOAA, FWS	Atlantic Ocean 40°24′N 68°00′W / 40.4°N 68°W	September 15, 2016	3,144,320 acres (12,724.6 km2)	The monument protects four underwater seamounts and three very deep canyons in the continental shelf 100 miles (160 km) off the coast of Massachusetts, home to several endangered species.

Oregon Caves	-	NPS	Oregon 42°06′N 123°25′W / 42.10°N 123.41°W	July 12, 1909	4,554.03 acres (18.4 km2)	67,417	The monument is known for its marble caves, as well as for the Pleistocene jaguar and grizzly bear fossils found in the deeper caves.

Organ Pipe Cactus	-	NPS	Arizona 32°02′N 112°52′W / 32.04°N 112.86°W	April 13, 1937	330,688.86 acres (1,338.3 km2)	260,375	This monument is the only place in the United States where the organ pipe cactus grows wild. There are many other types of cacti and desert flora native to the Sonoran Desert.

Organ Mountains-Desert Peaks	-	BLM	New Mexico 32°18′N 106°33′W / 32.3°N 106.55°W	May 21, 2014	419,532 acres (1,697.8 km2)	The protected area includes five mountain ranges that rise above the Chihuahua Desert: Robledo Mountains, Sierra de las Uvas, Doña Ana Mountains, Organ Mountains and Potrillo Mountains.

Pacific Remote Islands Marine	-	NOAA, FWS	US Minor Outlying Islands south-southwest of Hawaii 16°45′N 169°31′W / 16.75°N 169.52°W	January 6, 2009	313,941,851 acres (1,270,477.6 km2)	The marine monument consists of Baker Island, Howland Island, Jarvis Island, Johnston Atoll, Kingman Reef, Palmyra Atoll, and Wake Island, which are in the Pacific Ocean southwest of Hawaii.

Papahānaumokuākea Marine	-	NOAA, FWS	Hawaii, U.S. Minor Outlying Islands 25°42′N 171°44′W / 25.7°N 171.73°W	June 15, 2006	372,848,597 acres (1,508,864.7 km2)	The marine monument consists of ocean waters and 10 islands and atolls of the Northwestern Hawaiian Islands including Midway Atoll (which is the site of the Midway Atoll National Wildlife Refuge).

Petroglyph	-	NPS	New Mexico 35°10′N 106°46′W / 35.16°N 106.76°W	June 27, 1990	7,209.3 acres (29.2 km2)	268,613	This monument protects a variety of cultural and natural resources, including five volcanic cones, hundreds of archeological sites and an estimated 25,000 images carved by native peoples and early Spanish settlers.

Pipe Spring	-	NPS	Arizona 36°52′N 112°44′W / 36.86°N 112.73°W	May 31, 1923	40 acres (0.2 km2)	25,179	Rich with Native Americans, early explorer and Mormon pioneer history, this site shows Ancestral Puebloans and Kaibab Paiute Indian and pioneer life in the Old West, including the cabin where explorer John Wesley Powell's survey crew stayed in 1871.

Pipestone	-	NPS	Minnesota 44°01′N 96°20′W / 44.01°N 96.33°W	August 25, 1937	281.78 acres (1.1 km2)	73,267	This monument preserves traditional catlinite quarries used to make ceremonial pipes, vitally important to traditional Plains Indian culture. The quarries are sacred to the Sioux and Lakota people and are historically neutral territory where enrolled citizens of all tribes can quarry the stone.

Pompeys Pillar	-	BLM	Montana 45°59′24″N 108°00′04″W / 45.99°N 108.001°W	January 17, 2001	51 acres (0.2 km2)	Pompeys Pillar is a 150-foot (46 m) sandstone pillar from the late Cretaceous Hell Creek Formation next to the Yellowstone River.

Poverty Point	-	NPS	Louisiana 32°38′N 91°25′W / 32.63°N 91.41°W	October 31, 1988	910.85 acres (3.7 km2)	Poverty Point is a prehistoric archeological site that dates from between 1650 and 700 BC and consisting of six earthen rings and seven mounds.

Prehistoric Trackways	-	BLM	New Mexico 32°21′N 106°54′W / 32.35°N 106.9°W	March 30, 2009	5,280 acres (21.4 km2)	Prehistoric Trackways contains fossilized footprints of numerous Paleozoic amphibians, reptiles, and insects, as well as fossilized plants and petrified wood dating back approximately 280 million years.

President Lincoln and Soldiers’ Home	-	AFRH	District of Columbia 38°56′30″N 77°00′42″W / 38.9416°N 77.0117°W	July 7, 2000	2.3 acres (0.01 km2)	President Abraham Lincoln and his family resided seasonally on the grounds of the Armed Forces Retirement Home, which was founded in 1851 for homeless and disabled war veterans.

Pullman	-	NPS	Illinois 41°41′28″N 87°36′36″W / 41.691°N 87.610°W	February 19, 2015	0.4 acres (0.002 km2)	Built for the Pullman Company, it was the first planned industrial community in the United States as a company town for the Pullman Company that manufactured railroad cars.

Rainbow Bridge	-	NPS	Utah 37°05′N 110°58′W / 37.08°N 110.96°W	May 30, 1910	160 acres (0.6 km2)	110,904	Rainbow Bridge is one of the world's largest natural bridges. It stands 290 feet (88 m) tall and spans 275 feet (84 m) wide; the top of the bridge is 42 feet (13 m) thick and 33 feet (10 m) wide.

Río Grande del Norte	-	BLM	New Mexico 36°40′00″N 105°42′00″W / 36.66667°N 105.7°W	March 25, 2013	242,710 acres (982.2 km2)	This site includes part of the Rio Grande Gorge and extinct volcanoes of the Taos Plateau volcanic field. There are a variety of archaeological and historical artifacts including petroglyphs and Hispanic settlement sites.

Rose Atoll Marine	-	NOAA, FWS	American Samoa 14°33′S 168°32′W / 14.55°S 168.54°W	January 6, 2009	8,609,045 acres (34,839.6 km2)	This marine monument consists of the two small islands of Rose Atoll, a lagoon, and a coral reef east of American Samoa.

Russell Cave	Russell Cave.JPG	NPS	Alabama 34°58′N 85°48′W / 34.97°N 85.80°W	May 11, 1961	310.45 acres (1.3 km2)	21,620	Donated by the National Geographic Society, the cave's exceptionally large main entrance was used as a shelter by prehistoric Indians from the earliest known human settlement in the southeastern United States.

Saint Francis Dam Disaster	-	USFS	California 34°33′N 118°31′W / 34.55°N 118.51°W	March 12, 2019	353 acres (1.4 km2)	The St. Francis Dam was a 700 ft (210 m)-wide dam that supported a reservoir for Los Angeles's water supply.

Salinas Pueblo Missions	-	NPS	New Mexico 34°16′N 106°04′W / 34.26°N 106.06°W	November 1, 1909	1,071.42 acres (4.3 km2)	34,629	Formerly known as Gran Quivira National Monument, it is where Native American trade communities of Tiwa- and Tompiro-speaking Puebloans lived when Spanish Franciscan missionaries made contact in the 17th century.

San Gabriel Mountains	-	USFS	California 34°13′N 118°04′W / 34.22°N 118.06°W	October 10, 2014	345,222 acres (1,397.1 km2)	Covering 346,177 acres of the San Gabriel mountains in northern Los Angeles County and western San Bernardino County, California, with peaks as high as 10,068 ft (3,069 m), the San Gabriel Mountains provide one of the few open-space recreation opportunities close to residents of Los Angeles County and is also an important watershed for the Los Angeles area.

San Juan Islands	Iceberg Point Lopez Island Washington USA.jpeg	BLM	Washington 48°32′N 123°02′W / 48.53°N 123.03°W	March 25, 2013	970 acres (3.9 km2)	The rugged landscapes of the San Juan Islands in Puget Sound are the habitat for orcas, eagles, and seals and provide opportunities for kayaking, birdwatching, and other activities.

Sand to Snow	-	BLM, USFS	California 34°05′N 116°41′W / 34.08°N 116.68°W	February 12, 2016	154,000 acres (623.2 km2)	This monument extends from the Mojave and Sonoran Desert floors up to over 10,000 feet in the San Bernardino Mountains, including the San Gorgonio Wilderness.

Santa Rosa and San Jacinto Mountains	-	BLM, USFS	California 33°48′N 116°42′W / 33.80°N 116.70°W	October 24, 2000	280,009 acres (1,133.2 km2)	This monument preserves large portions of the Santa Rosa and San Jacinto ranges, the northernmost of the Peninsular Ranges. Parts are within San Bernardino National Forest and the California Desert Conservation Area.

Scotts Bluff	-	NPS	Nebraska 41°50′N 103°42′W / 41.83°N 103.70°W	December 12, 1919	3,004.73 acres (12.2 km2)	142,028	Scotts Bluff is an important 19th century geologic formation and landmark on the Oregon Trail and Mormon Trail. It contains multiple bluffs on the south side of the North Platte River, but it is named after a prominent bluff called Scotts Bluff which rises more than 830 feet (250 m) above the plains at its highest point.

Sonoran Desert	-	BLM	Arizona 33°00′N 112°28′W / 33.00°N 112.46°W	January 17, 2001	486,400 acres (1,968.4 km2)	This monument protects a small portion of the Sonoran Desert. It is home to several federally listed endangered species and also has three wilderness areas, many significant archeological and historic sites, and remnants of several important historic trails.

Statue of Liberty	-	NPS	New York, New Jersey 40°41′N 74°02′W / 40.69°N 74.04°W	October 15, 1924	58.38 acres (0.2 km2)	4,335,431	This iconic statue, built in 1886 on Liberty Island and 151 feet (46 m) tall, commemorates the centennial of the signing of the United States Declaration of Independence and is a gesture of friendship from France to the U.S.

Stonewall	-	NPS	New York 40°44′01″N 74°00′08″W / 40.73364°N 74.00212°W	June 24, 2016	7.7 acres (0.0 km2)	511,220	The Stonewall Inn, often shortened to Stonewall, is a gay bar in New York City and the site of the Stonewall riots of 1969, which is widely considered to be the single most important event leading to the gay liberation movement and the modern fight for LGBT rights in the United States.

Sunset Crater Volcano	-	NPS	Arizona 35°22′N 111°30′W / 35.36°N 111.50°W	May 30, 1930	3,040 acres (12.3 km2)	104,583	Sunset Crater is the youngest in a string of volcanoes in the San Francisco volcanic field that is related to the nearby San Francisco Peaks.

Timpanogos Cave	-	NPS	Utah 40°26′N 111°43′W / 40.44°N 111.71°W	October 14, 1922	250 acres (1.0 km2)	121,311	The Timpanogos cave system is in the Wasatch Range in the American Fork Canyon. Three main chambers are accessible: Hansen Cave, Middle Cave, and Timpanogos Cave.

Tonto	-	NPS	Arizona 33°39′N 111°05′W / 33.65°N 111.09°W	October 21, 1907	1,120 acres (4.5 km2)	39,822	Lying on the northeastern edge of the Sonoran Desert along the Salt River, Tonto preserves two cliff dwellings that were occupied by the Salado culture during the 13th to 15th centuries.

Tule Lake	-	NPS, FWS	California 41°53′N 121°22′W / 41.89°N 121.37°W	December 5, 2008	Tule Lake Segregation Center was the largest of ten concentration camps used for the internment of Japanese Americans during World War II.

Tule Springs Fossil Beds	-	NPS	Nevada 36°19′N 115°16′W / 36.32°N 115.27°W	December 19, 2014	22,650 acres (91.7 km2)	A major archaeological site north of Las Vegas where thousands of prehistoric fossils, including mammoth, lion, and camel, have been found in an area that was once a wetland.

Tuzigoot	-	NPS	Arizona 34°47′N 112°02′W / 34.79°N 112.04°W	July 25, 1939	811.89 acres (3.3 km2)	98,090	Tuzigoot preserves a two- to three-story pueblo ruin on the summit of a limestone and sandstone ridge in the Verde Valley.

Upper Missouri River Breaks	-	BLM	Montana 47°47′N 109°01′W / 47.78°N 109.02°W	January 17, 2001	377,346 acres (1,527.1 km2)	A series of badland areas characterized by rock outcroppings, steep bluffs and grassy plains along the 149-mile (240 km) Upper Missouri National Wild and Scenic River in central Montana, The Breaks is home to at least 60 mammal species and hundreds of bird species.

Vermilion Cliffs	-	BLM	Arizona 36°49′N 111°44′W / 36.81°N 111.74°W	November 9, 2000	279,566 acres (1,131.4 km2)	Steep eroded escarpments consisting primarily of sandstone, siltstone, limestone and shale rise as much as 3,000 feet (910 m) above their base.

Virgin Islands Coral Reef	-	NPS	US Virgin Islands 18°19′N 64°43′W / 18.31°N 64.72°W	January 17, 2001	12,708.07 acres (51.4 km2)	These coral reefs, sandy bottoms, seagrass beds, and mangrove forests are in a 3-mile (4.8 km) marine belt that surrounds St John, VI and Virgin Islands National Park.

Waco Mammoth	-	NPS	Texas 31°36′22″N 97°10′26″W / 31.606°N 97.174°W	July 10, 2015	107.23 acres (0.4 km2)	106,932	The Waco Mammoth National Monument is a paleontological site and museum in Waco, Texas, where fossils of twenty-four Columbian mammoths (Mammuthus columbi) and other mammals from the Pleistocene Epoch have been uncovered.

Walnut Canyon	-	NPS	Arizona 35°10′N 111°31′W / 35.17°N 111.51°W	November 30, 1915	3,529.26 acres (14.3 km2)	167,736	Walnut Canyon protects 25 cliff dwelling rooms constructed by the Sinagua people. It lies on the Colorado Plateau and cuts through the Permian Kaibab Limestone, which exposes the Toroweap Formation and Coconino Sandstone.

White Sands	-	NPS	New Mexico 32°47′N 106°10′W / 32.78°N 106.17°W	January 18, 1933	143,703.55 acres (581.5 km2)	603,008	Located in the mountain-ringed Tularosa Basin valley area, White Sands consists of the southern part of a 275-square-mile (710 km2) field of white sand dunes composed of gypsum crystals.

Wupatki	Wukoki Ruins.jpeg	NPS	Arizona 35°31′N 111°22′W / 35.52°N 111.37°W	December 9, 1924	35,422.13 acres (143.3 km2)	205,122	Many settlement sites built by the Sinagua, Cohonina, and Ancestral Puebloans are scattered throughout the monument. About 2000 Ancient Pueblo People moved here to farm after an 11th century eruption of Sunset Crater.

Yucca House	-	NPS	Colorado 37°15′N 108°41′W / 37.25°N 108.69°W	December 19, 1919	33.87 acres (0.1 km2)	Designated a research national monument, it is a large unexcavated Ancestral Puebloan archeological site. The site is one of many Ancestral Puebloan village sites in the Montezuma Valley occupied between 900 and 1300 CE.

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