Columbia Encyclopedia

Search results

500 results found

Central Valley project

(Encyclopedia)Central Valley project, central Calif., long-term general scheme for the utilization of the water of the Sacramento River basin in the north for the benefit of the farmlands of the San Joaquin Valley ...

Strawberry valley project

(Encyclopedia)Strawberry valley project, N central Utah, developed by the U.S. Bureau of Reclamation for irrigating lands S of Utah Lake; constructed 1906–13. The water of Strawberry River and its tributaries is ...

Tennessee Valley Authority

(Encyclopedia)Tennessee Valley Authority (TVA), independent U.S. government corporate agency, created in 1933 by act of Congress; it is responsible for the integrated development of the Tennessee River basin. The h...

Salt River valley

(Encyclopedia)Salt River valley, irrigated region around the lower course of the Salt River, which rises in mountain streams near the Mogollon Rim of the Mogollon Plateau and flows southwest to join the Gila River ...

Rift Valley fever

(Encyclopedia)Rift Valley fever, acute viral disease that affects domestic livestock and can be transmitted to humans. The disease is most common in E and S Africa, but also occurs widely in sub-Saharan Africa and ...

Cuyahoga Valley National Park

(Encyclopedia)Cuyahoga Valley National Park kīˌəhōˈgə [key], 32,950 acres (13,334 hectares), in the Cuyahoga River valley between Akron and Cleveland, NE Ohio; est. as a national recreation area 1974, designa...

lily of the valley

(Encyclopedia)lily of the valley, common name for either of the two species of Convallaria, spring-blooming perennials of the family Liliaceae (lily family). C. majalis, the species usually in cultivation, is nativ...

Kobuk Valley National Park

(Encyclopedia)Kobuk Valley National Park kōbo͝okˈ [key], 1,750,737 acres (709,048 hectares), NW Alaska. Located in rugged terrain N of the Arctic Circle, the park embraces the central valley of the Kobuk River, ...

Baalbek

(Encyclopedia)Baalbek bälˈbĕk [key], ancient city, now in Lebanon, 35 mi (56 km) NW of Damascus, in the Al Biqa (Bekaa) valley. Originally it was probably devoted to the worship of Baal or Bel, the Phoenician su...

Browse by Subject