Rugged seashore on Mt. Desert Island and adjacent mainland
Arches (Utah), 1971
76,518.98
Unusual stone arches, windows, pedestals caused by erosion (park was a National Monument 1929–1971)
Badlands (S.D.), 1978
242,755.94
Arid land of fossils, prairie, bison, deer, bighorn sheep, antelope (park was a National Monument 1929–1978)
Big Bend (Tex.), 1935
801,163.21
Mountains and desert bordering the Rio Grande
Biscayne (Fla.), 1980
172,924.07
Aquatic, coral reef park south of Miami (park was a National Monument, 1968–1980)
Black Canyon of the Gunnison (Colo.), 1999
30,243.53
Canyon with narrow opening, sheer walls, and startling depths (park was a National Monument 1933–1999)
Bryce Canyon (Utah), 1924
35,835.08
Area of brilliantly colored, grotesque eroded rocks
Canyonlands (Utah), 1964
337,597.83
Colorful wilderness with impressive red-rock canyons, spires, arches
Capitol Reef (Utah), 1971
241,904.26
Highly colored sedimentary rock formations in high, narrow gorges (park was a National Monument 1937–1971)
Carlsbad Caverns (N.M.), 1930
46,766.45
One of the world's largest known caves
Channel Islands (Calif.), 1980
249,561.00
Area is rich in marine mammals, sea birds, endangered species, and archaeology (park was a National Monument 1938–1980)
Congaree (S.C.), 2003
21,743.58
Contains the largest contiguous tract of old-growth bottomland hardwood forest remaining in the U.S. (park was a National Monument 1976–2003)
Crater Lake (Ore.), 1902
183,224.05
Deep blue lake in heart of inactive volcano
Cuyahoga Valley (Ohio), 2000
32,860.73
Wilderness area offering recreational, historic, and cultural attractions, including scenic rail journeys (park was a National Recreation Area 1974–2000)
Death Valley (Calif.-Nev.), 1994
3,340,409.65
Largest desert, surrounded by high mountains, containing the lowest point in the Western Hemisphere (park was a National Monument 1933–1994)
Denali (Alaska), 1917
4,740,911.72
Contains Mt. McKinley, N. America's highest mountain (20,320 ft) (formerly Mt. McKinley National Park, 1917–1980)
Dry Tortugas (Fla.), 1992
64,701.22
Located 70 mi off Key West. Features an underwater nature trail (formerly Ft. Jefferson National Monument 1935–1992)
Everglades (Fla.), 1934
1,508,491.84
Subtropical area with abundant bird and animal life
Gates of the Arctic (Alaska), 1980
7,523,897.74
Diverse north central wilderness contains part of Brooks Range
Glacier (Mont.), 1910
1,013,572.41
Rocky Mountain scenery with many glaciers and lakes
Glacier Bay (Alaska), 1980
3,224,840.31
Popular for wildlife, whale-watching, glacier-calving, scenery (park was a National Monument 1925–1980)
Samoa National Park, American Samoa: two rain forest preserves and a coral reef on the island of Ofu are home to unique tropical animals. The park also includes several thousand acres on the islands of Tutuila and Ta'u
Finest Pacific Northwest rain forest; scenic mountain park
Petrified Forest (Ariz.), 1962
93,532.57
Extensive natural exhibit of petrified wood (park was a National Monument 1906–1962)
Redwood (Calif.), 1968
112,512.97
Coastal redwood forests; contains world's tallest-known tree (369.2 ft)
Rocky Mountain (Colo.), 1915
265,765.03
Section of the Rocky Mountains; 107 named peaks over 10,000 ft
Saguaro (Ariz.), 1994
91,445.16
Giant saguaro cacti, unique to the Sonoran Desert, sometimes reach a height of 50 ft in this cactus forest (park was a National Monument 1933–1994)
Sequoia (Calif.), 1890
404,051.17
Giant sequoias; magnificent High Sierra scenery, including Mt. Whitney
Shenandoah (Va.), 1926
199,038.07
Tree-covered mountains; scenic Skyline Drive
Theodore Roosevelt (N.D.), 1978
70,446.89
Scenic valley of Little Missouri River; T.R. Ranch; wildlife (Theodore Roosevelt National Memorial Park 1947–1978)
Virgin Islands (U.S. V.I.), 1956
14,688.87
Beaches; lush hills; prehistoric Carib Indian relics
Voyageurs (Minn.), 1971
218,200.17
Wildlife, canoeing, fishing, hiking
Wind Cave (S.D.), 1903
28,295.03
Limestone caverns in Black Hills; bison herd
Wolf Trap Farm (Va.), 2003
130.28
The nation's first National Park for the Performing Arts
Wrangell–St. Elias (Alaska), 1980
8,323,147.59
Largest park system area has abundant wildlife, second highest peak in U.S. (Mt. St. Elias); adjoins Canadian park (park was a National Monument 1978–1980)
Yellowstone (Wyo.-Mont.-Idaho), 1872
2,219,790.71
World's greatest geyser area; abundant falls, wildlife, canyons
Yosemite (Calif.), 1890
761,266.28
Mountains; inspiring gorges and waterfalls; giant sequoias
Zion (Utah), 1919
146,597.64
Multicolored gorge in heart of southern Utah desert