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Continental Divide

(Encyclopedia)Continental Divide, the “backbone” of a continent. In North America, from N Alaska to New Mexico, it moves along the crest of the Rocky Mts., which separates streams with outlets to the west of th...

George III, king of Great Britain and Ireland

(Encyclopedia)George III, 1738–1820, king of Great Britain and Ireland (1760–1820); son of Frederick Louis, prince of Wales, and grandson of George II, whom he succeeded. He was also elector (and later king) of...

Davis, William Morris

(Encyclopedia)Davis, William Morris, 1850–1934, American geographer, geologist, and teacher, b. Philadelphia; B.S. Harvard, 1869. He founded (1904) the Association of American Geographers and served three terms a...

Key Largo

(Encyclopedia)Key Largo, narrow island, c.30 mi (48 km) long, off S Fla., largest of the Florida Keys. Along with other Florida Keys, especially Key West, it has become an increasingly popular tourist spot, noted f...

damselfish

(Encyclopedia)damselfish, common name for members of the large family Pomacentridae, marine fishes of tropical waters. Common in the West Indies and along the Florida coasts are the sergeant-major, named for its ve...

butterfly fish

(Encyclopedia)butterfly fish, common name for certain members of the Chaetodontidae, a family of reef-dwelling tropical fishes with compressed bodies and small mouths and teeth. Butterfly fish are carnivorous, feed...

Fort Snelling

(Encyclopedia)Fort Snelling, on a bluff above the junction of the Mississippi and Minnesota rivers, SE Minn.; est. 1820. It served as a regional protective barrier and as a nucleus for settlement. Minneapolis and S...

Saint Croix, island, Virgin Islands

(Encyclopedia)Saint Croix sānt kroi [key], island (2010 pop. 50,601), 80 sq mi (207 sq km), the largest of the U.S. Virgin Islands, in the West Indies. Christiansted, on the northeast coast, is the island's leadin...

Devonian period

(Encyclopedia)Devonian period dĭvōˈnēən [key], fourth period of the Paleozoic era of geologic time between 408 and 360 million years ago (see Geologic Timescale, tablegeologic timescale, table). It was named (...

Blue Ridge

(Encyclopedia)Blue Ridge, eastern range of the Appalachian Mts., extending south from S Pa. to N Ga.; highest mountains in the E United States. Mt. Mitchell, 6,684 ft (2,037 m) high, is the tallest peak. Beginning ...