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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-…

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…

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…

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…

Glencoe, valley, Scotland

(Encyclopedia) GlencoeGlencoeglĕnkōˈ [key], valley of the Coe River, Highland, W Scotland. It was the scene of the massacre of the Macdonald clan (Feb., 1692) by the Campbells, under the direction of…

Indus valley civilization

(Encyclopedia) Indus valley civilization, ancient civilization that arose about 3300 b.c. in the valley of the Indus River and its tributaries, in the northwestern portion of the Indian subcontinent…

North Valley Stream

(Encyclopedia) North Valley Stream, uninc. town (1990 pop. 14,574), Nassau co., SE N.Y., on Long Island. It is chiefly residential.

Ethiopian Highlands

(Encyclopedia) Ethiopian Highlands, rugged plateau region of E Africa, covering about two thirds of Ethiopia. It is divided into two massifs by the Great Rift Valley; the Amhara, or Ethiopian Plateau…

Vardar

(Encyclopedia) VardarVardarvärˈdär [key], river, c.240 mi (390 km) long, rising in the Šar Planina, North Macedonia, and flowing northeast then southeast in a fertile valley, past Skopje, through NE…