Lake Umatilla

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Lake Umatilla
Location of Lake Umatilla in Oregon and Washington, USA.
Location of Lake Umatilla in Oregon and Washington, USA.
Lake Umatilla
Show map of Oregon
Location of Lake Umatilla in Oregon and Washington, USA.
Location of Lake Umatilla in Oregon and Washington, USA.
Lake Umatilla
Show map of Washington (state)
Location of Lake Umatilla in Oregon and Washington, USA.
Location of Lake Umatilla in Oregon and Washington, USA.
Lake Umatilla
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LocationOregon / Washington
Coordinates45°43′3″N 120°41′38″W / 45.71750°N 120.69389°W / 45.71750; -120.69389
Typereservoir
Columbia River
Columbia River
Basin countriesUnited States
First flooded
1971 (1971)
Max. length110 mi (177 km)
Surface elevation
266 ft (81 m)[1]

Lake Umatilla is a 110-mile (177 km) long[1] reservoir on the Columbia River in the United States, on the border of the U.S. states of Washington and Oregon. It was created in 1971 with the construction of John Day Dam, and stretches upstream to the McNary Dam. It lies in parts of Sherman, Gilliam, Morrow, and Umatilla counties in Oregon, and Klickitat and Benton counties in Washington.

See also

References