Pend Oreille Lake (pŏnˌdərāˈ) [key], 148 sq mi (383 sq km), 65 mi (105 km) long, and 1,200 ft (366 m) deep, N Idaho; largest lake in Idaho and one of the largest and deepest lakes in the United States. Fed by the Clark Fork, and drained by the Pend Oreille River, the lake, with the surrounding national forests, is a place of beauty and a landmark in a farming, lumbering, and mining region.
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