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Fort Peck Dam

(Encyclopedia) Fort Peck Dam, 21,430 ft (6,531 m) long and 250 ft (76 m) high, on the Missouri River, NE Mont.; one of the world's largest earth-filled dams. The dam was built (1933–40) by the U.S.…

Mead, Lake

(Encyclopedia) Mead, Lake, 247 sq mi (640 sq km), on the Nev.-Ariz. border, formed by Hoover Dam across the Colorado River. The lake is 115 mi (185 km) long, from 1 to 8 mi (1.6–12.9 km) wide, and…

Boulder City

(Encyclopedia) Boulder City, residential city (2020 pop. 16,701), S Nev., just W of Hoover Dam near Lake Mead; inc. 1959. Built (1932) by the federal…

Delaware Water Gap

(Encyclopedia) Delaware Water GapDelaware Water Gapdĕlˈəwâr, –wər [key], scenic gorge, 2 mi (3.2 km) long, cut by the Delaware River through Kittatinny Mt., on the N.J.–Pa. line; located in a…

Skagit

(Encyclopedia) SkagitSkagitskăjˈĭt [key], river, c.150 mi (240 km) long, rising in the Cascade Range, British Columbia, and flowing SW through Wash. into Puget Sound. Gorge High Dam, Diablo Dam, and…

Ouachita

(Encyclopedia) OuachitaOuachitawôˈshĭtôˌ [key], river, c.600 mi (970 km) long, rising in the Ouachita Mts., W Ark. It flows east, southeast, and south through a cotton-producing region of S Arkansas…

Flaming Gorge Dam

(Encyclopedia) Flaming Gorge Dam, in a deep canyon of the Green River, NE Utah; built 1958–63 by the U.S. Bureau of Reclamation as a major unit in the Colorado River storage project. The dam…

Cuyahoga Valley National Park

(Encyclopedia) Cuyahoga Valley National ParkCuyahoga Valley National Parkkīˌəhōˈgə [key], 32,950 acres (13,334 hectares), in the Cuyahoga River valley between Akron and Cleveland, NE Ohio; est. as a…

Chelan, Lake

(Encyclopedia) Chelan, LakeChelan, Lakeshəlănˈ [key], 55 mi (89 km) long and from 1 to 2 mi (1.6–3.2 km) wide, located in a deep narrow gorge in the Cascade Range, NW Wash.; third-deepest freshwater…

Gatineau, city, Canada

(Encyclopedia) Gatineau Gatineau gătˈĭnō [key], city, SW Que., Canada, at the junction of the Gatineau and Ottawa…