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Yuma, indigenous people of North America

(Encyclopedia) YumaYumay&oomacr;ˈ mə [key], Native North Americans whose language belongs to the Yuman branch of the Hokan-Siouan linguistic stock (see Native American languages). Also known as…

Imperial Valley

(Encyclopedia) Imperial Valley, fertile region in the Colorado Desert, SE Calif., extending S into NW Mexico. Once part of the Gulf of California, most of the region is below sea level; its lowest…

Smith, Jedediah Strong

(Encyclopedia) Smith, Jedediah Strong, 1799–1831, American explorer, one of the greatest of the mountain men, b. near Binghamton, N.Y. Early in 1824, Smith took a party through South Pass, beginning…

Salton Sea

(Encyclopedia) Salton SeaSalton Seasôlˈtən [key], saline lake, 370 sq mi (958 sq km), northern part of the Imperial Valley, SE Calif.; 232 ft (71 m) below sea level. The area was anciently the…

Oñate, Juan de

(Encyclopedia) Oñate, Juan deOñate, Juan dehwän dā ōnyäˈtā [key], fl. 1595–1614, Spanish explorer in the American Southwest, possibly b. New Spain. In 1598 he led an expedition north from New Spain,…

Powell, John Wesley

(Encyclopedia) Powell, John Wesley, 1834–1902, American geologist and ethnologist, b. Mt. Morris (now part of New York City). The family moved to Illinois, where Powell joined the Natural History…

Moran, Edward

(Encyclopedia) Moran, EdwardMoran, Edwardmərănˈ [key], 1829–1901, American painter of marine and historical subjects, b. England. He came to the United States with his family in 1844. In 1899 he…

Gila

(Encyclopedia) GilaGilahēˈlə [key], river, 630 mi (1,014 km) long, rising in the mountains of W N.Mex. and flowing W across Ariz. to the Colorado River at Yuma, Ariz.; the San Francisco River is its…

Hoover Dam

(Encyclopedia) Hoover Dam, 726 ft (221 m) high and 1,244 ft (379 m) long, on the Colorado River between Nev. and Ariz.; one of the world's largest dams. Built between 1931 and 1936 by the U.S. Bureau…

pigment

(Encyclopedia) pigment, substance that imparts color to other materials. In paint, the pigment is a powdered substance which, when mixed in the liquid vehicle, imparts color to a painted surface. The…