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Glen Canyon Dam

(Encyclopedia)Glen Canyon Dam, 710 ft (216 m) high, 1,560 ft (475 m) long, NE Ariz., on the Colorado River. The key unit of the U.S. Bureau of Reclamation's Colorado River storage project, it is one of the world's ...

Columbia, river, Canada and the United States

(Encyclopedia)Columbia, river, c.1,210 mi (1,950 km) long, rising in Columbia Lake, SE British Columbia, Canada. It flows first NW in the Rocky Mt. Trench, then hooks sharply about the Selkirk Mts. to flow S throug...

Grand Bahama

(Encyclopedia)Grand Bahama: see Bahamas.

Grand Banks

(Encyclopedia)Grand Banks, submarine plateau rising from the continental shelf, c.36,000 sq mi (93,200 sq km), off SE Newfoundland, N.L., Canada. It is c.300 mi (480 km) long and c.400 mi (640 km) wide; depths rang...

Grand Canal

(Encyclopedia)Grand Canal, Chinese Da Yunhe [large transit river], longest in the world, extending c.1,000 mi (1,600 km) from Beijing to Hangzhou, E China, and forming an important north-south waterway on the North...

Grand Canary

(Encyclopedia)Grand Canary: see Canary Islands, Spain. ...

Grand Canyon

(Encyclopedia)Grand Canyon, great gorge of the Colorado River, one of the natural wonders of the world; c.1 mi (1.6 km) deep, from 4 to 18 mi (6.4–29 km) wide, and 217 mi (349 km) long, NW Ariz. The canyon shows ...

Grand Forks

(Encyclopedia)Grand Forks, city (2020 pop. 59,166), seat of Grand Forks co., E N.Dak., at the confluence of the Red and the Red Lake rivers; inc. 1881. In a spring wh...

Grand Haven

(Encyclopedia)Grand Haven, city (2020 pop. 11,011), seat of Ottawa co., SW Mich., at the mouth of the Grand River; inc. 1867. It is a port on Lake Michigan that ships...

Grand Island

(Encyclopedia)Grand Island <1> City (2020 pop. 53,131), seat of Hall co., S Nebr., on the Wood River near its junction with the Platte; settled 1857 on the Plat...