Columbia Encyclopedia

Search results

500 results found

Pyramid Lake

(Encyclopedia)Pyramid Lake, 188 sq mi (487 sq km), W Nev. The lake, a remnant of ancient Lake Lahontan, receives the Truckee River. Visited (1844) by U.S. explorer John Frémont, the lake was named for its large py...

Lahontan, Lake

(Encyclopedia)Lahontan, Lake ləhŏnˈtən [key], extinct lake of W Nev. and NE Calif. It was formed by heavy precipitation caused by the Pleistocene glaciers and with Lake Bonneville (see under Bonneville Salt Fla...

food pyramid

(Encyclopedia)CE5 The U.S. Department of Agriculture used (1992–2005) this pyramid to show the basis of a healthy diet, dividing foods into five nutritional groups and recommending the number of daily average ...

pyramid, structure

(Encyclopedia)pyramid. The true pyramid exists only in Egypt and Sudan, though the term has also been applied to similar structures in other countries. Egyptian pyramids are square in plan and their triangular side...

pyramid, in geometry

(Encyclopedia)CE5 Pyramid pyramid, in geometry, solid figure bounded by a polygon (the base, or directrix) and the surface generated by a moving line (the generator) passing through a fixed point (vertex) and c...

Truckee

(Encyclopedia)Truckee trŭkˈē [key], river, c.100 mi (160 km) long, rising in Lake Tahoe on the Calif.-Nev. line and flowing NE to Pyramid Lake, W Nev. Lake Tahoe Dam of the Newlands project is on the Truckee; Bo...

Migingo Islands

(Encyclopedia)Migingo Islands, small, rocky islands in Lake Victoria, E Africa, off Kenya north of the Tanzanian border. The group consists of Migingo, Ugingo, and Pyramid Island. According to a boundary set by the...

Edward, Lake

(Encyclopedia)Edward, Lake, or Edward Nyanza nīănˈzə, nē– [key] 830 sq mi (2,150 sq km), in the Great Rift Valley, central Africa, on the Congo-Uganda border. It lies at an altitude of c.3,000 ft (910 m), is...

Devils Lake

(Encyclopedia)Devils Lake. 1 200 sq mi (520 sq km), NE central N.Dak., the largest natural body of water in the state. In an area of typically inland drainage, Devils Lake can range from a dry lakebed to more than ...

Dubawnt Lake

(Encyclopedia)Dubawnt Lake do͝obôntˈ [key], one of the largest lakes of Canada, c.1,600 sq mi (4,140 sq km), in S Nunavut Territory. The Dubawnt River flows through it. Located north of the tree line, the lake i...