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Lewis. 1 Early name of the Snake River. 2 River, c.95 mi (155 km) long, rising in the Cascade Range, SW Wash., and flowing SW to the Columbia River NW of Vancouver. Three privately owned dams furnish hydroelectric power and form a string of lakes along the river's middle course.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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