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Lake Sacajawea

Coordinates: 46°14′58″N 118°52′47″W / 46.24944°N 118.87972°W / 46.24944; -118.87972
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Lake Sacajawea
Overview of the lake in 2017
Lake Sacajawea is located in Washington (state)
Lake Sacajawea
Lake Sacajawea
Lake Sacajawea is located in the United States
Lake Sacajawea
Lake Sacajawea
LocationFranklin / Walla Walla counties, Washington, United States
Coordinates46°14′58″N 118°52′47″W / 46.24944°N 118.87972°W / 46.24944; -118.87972
Typereservoir
Primary inflowsSnake River
Primary outflowsSnake River
Basin countriesUnited States

Lake Sacajawea is a lake 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.