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Hetch Hetchy Valley

(Encyclopedia)Hetch Hetchy Valley, in Yosemite National Park, central Calif., on the Tuolumne River. It once rivaled Yosemite Valley in beauty and grandeur. O'Shaughnessy Dam (completed 1923; enl. 1938) turned the ...

Mill Valley

(Encyclopedia)Mill Valley, city (1990 pop. 13,038), Marin co., W Calif., a suburb on Richardson Bay, an inlet of San Francisco Bay; inc. 1900. It is a residential community set in heavily timbered hills and valleys...

Sun Valley

(Encyclopedia)Sun Valley, mountain resort city (1990 pop. 938), alt. c.6,000 ft (1,830 m), Blaine co., S central Idaho; inc. 1967. It is a popular year-round resort with both winter and summer sports. It was founde...

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 ...

sudden oak death

(Encyclopedia)sudden oak death: see diseases of plants; water mold. ...

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.

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 ...

sudden infant death syndrome

(Encyclopedia)sudden infant death syndrome (SIDS) or crib death, sudden, unexpected, and unexplained death of an apparently healthy infant under one year of age (usually between two weeks and eight months old). SID...

Glencoe, valley, Scotland

(Encyclopedia)Glencoe glĕnkōˈ [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 John Campbell, 1st...

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