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|Location||Franklin / Walla Walla counties, Washington, United States|
|Primary inflows||Snake River|
|Primary outflows||Snake River|
|Basin countries||United States|
Lake Sacajawea is formed by the Ice Harbor Dam on the Snake River. It stretches from there upstream to the Lower Monumental Dam. It is named for Sacajawea, a Shoshone woman who accompanied Meriwether Lewis and William Clark during their exploration of the American West.
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