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Lake Herbert G. West facts for kids

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Lake Herbert G. West
West Lake
Location Franklin, Walla Walla, Columbia and Whitman counties, Washington state, U.S.
Type Reservoir
Primary inflows Snake River
Primary outflows Snake River
Basin countries United States
Surface area 6,590 acres (2,670 ha)
Water volume 465,000,000 m3 (1.64×1010 cu ft)
Surface elevation 541 feet (165 m)

Lake Herbert G. West (or Lake West) is a reservoir formed by the Lower Monumental Dam in the U.S. state of Washington. It extends up the Snake River for 28 miles (45 km) to the tailwater of Little Goose Dam. It has a surface area of 6,590 acres (27 km²), a maximum storage capacity of 432,000 acre feet (533,000,000 m3), normally kept at 377,000 acre feet (465,000,000 m3).

As the reservoir filled in 1968, it flooded several archaeological sites, including the Marmes Rockshelter, which contained the oldest known artifacts in Washington, dating back over 10,000 years.

The lake was named for Herbert G. West, a major promoter of inland navigation on the Columbia and Snake rivers.

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