(Encyclopedia) Noatak National Preserve, 6,569,904 acres (2,660,811 hectares), N Alaska. The preserve is the largest mountain-ringed river basin in the United States that is still virtually…
(Encyclopedia) Little Bighorn, river, c.90 mi (145 km) long, rising in the Bighorn Mts., N Wyo., and flowing north to join the Bighorn River in S Mont. On June 25–26, 1876, Sioux and Cheyenne…
(Encyclopedia) Acadia National Park, 48,419 acres (19,603 hectares), SE Maine, on the Atlantic coast; est. as Sieur de Monts National Monument 1916, designated Lafayette National Park 1919, renamed…
(Encyclopedia) ScottsbluffScottsbluffskŏtsˈblŭfˌ [key], city (1990 pop. 13,711), Scotts Bluff co., W Nebr., on the North Platte River near the Wyo. line; inc. 1900. It is the market, distribution,…
(Encyclopedia) Shasta Dam, 602 ft (183 m) high and 3,460 ft (1,055 m) long, on the Sacramento River, N Calif.; built 1938–45. One of the largest concrete dams in the world, it is a major unit in the…
(Encyclopedia) Cumberland Gap, natural passage through the Cumberland Mts., near the point where Virginia, Kentucky, and Tennessee meet. The gap was formed by the erosive action of a stream that once…
(Encyclopedia) Glacier National Park, 1,013,572 acres (410,497 hectares), NW Mont.; est. 1910. Straddling the Continental Divide, the park contains some of the most beautiful primitive wilderness in…
(Encyclopedia) Great Sand Dunes National Park and Preserve, 132.4 sq mi (343 sq km), in the San Luis Valley of S Colorado; est. as a national monument 1932, designated a national park 2004. Lying in…
(Encyclopedia) Grand Teton National ParkGrand Teton National Parktētŏnˈ, tēˈtŏn [key], 309,993 acres (125,503 hectares), NW Wyo.; est. 1929. The park, which includes Jackson Lake and part of Jackson…
