Boise, county (1,906 sq mi/4,937 sq km; 1990 pop. 3,509), W Idaho; Idaho City; 44°01'N 115°45'W. Mt. area cut by canyons of Payette R. and its Middle and South forks. Arrow Rock Dam and Reservoir and part of Lucky Peak Reservoir, both on Boise R., and Middle Fork Boise R. form S boundary; SE boundary formed by North Fork Boise R. Gold, silver, lead; lumber; cattle. Boise Natl. Forest extends throughout co. except for W margin. Part of Sawtooth Wilderness Area in E, in Sawtooth Range. Formed 1864.
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Idaho City; 44°01'N 115°45'W. Mt. area cut by canyons of Payette R. and its Middle and South forks. Arrow Rock Dam and Reservoir and part of Lucky Peak Reservoir, both on Boise R., and Middle Fork Boise R. form S boundary; SE boundary formed by North Fork Boise R. Gold, silver, lead; lumber; cattle. Boise Natl. Forest extends throughout co. except for W margin. Part of Sawtooth Wilderness Area in E, in Sawtooth Range. Formed 1864.
