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Yellowstone

(Encyclopedia) Yellowstone, river, 671 mi (1,080 km) long, rising in NW Wyo., and flowing NE through Mont. to enter the Missouri River near the N.Dak. line; it drains c.70,400 sq mi (182,340 sq km).…

Fort Peck Dam

(Encyclopedia) Fort Peck Dam, 21,430 ft (6,531 m) long and 250 ft (76 m) high, on the Missouri River, NE Mont.; one of the world's largest earth-filled dams. The dam was built (1933–40) by the U.S.…

North Platte, river, United States

(Encyclopedia) North Platte, river, c.680 mi (1,090 km) long, rising in the Park Range, N Colo., and flowing in a great bend N through SE Wyo., then east across the plains of W central Nebr. to join…

Biosphere 2

(Encyclopedia) Biosphere 2, privately funded ecological research project in which eight people lived sealed in a 3.15-acre (1.28-hectare) structure for two years (Sept. 26, 1991–Sept. 26, 1993).…

Narmada

(Encyclopedia) NarmadaNarmadanərmŭˈdə [key], river, c.775 mi (1,250 km) long, rising in Madhya Pradesh state, central India, and flowing W between the Satpura and Vindhya ranges through Gujarat state…

SETI

(Encyclopedia) SETISETIsĕtˈē [key] [Search for ExtraTerrestrial Intelligence], name given to a series of independent programs to detect radio signals from civilizations beyond the solar system.…

Point Four program

(Encyclopedia) Point Four program, U.S. foreign aid project aimed at providing technological skills, knowledge, and equipment to poor nations throughout the world. The program also encouraged the…

Colorado River storage project

(Encyclopedia) Colorado River storage project, a multipurpose plan, undertaken by the U.S. Bureau of Reclamation in 1956, to control the flow of the upper Colorado and its tributaries and to aid in…

Cobb, Henry Nichols

(Encyclopedia) Cobb, Henry Nichols, 1926–2020, American modernist architect, b. Boston, grad. Harvard Graduate School of Design (1949). At Harvard he met I. M. Pei, with whom he established a New…