Lake Bonneville, lake in Oregon

Lake Bonneville is a reservoir on the Columbia River, created in 1937 by Bonneville Dam and running about 45 miles upstream to The Dalles Dam, just under a mile wide at its widest. It lies in Multnomah, Hood River and Wasco counties in Oregon and Skamania and Klickitat counties in Washington. The Bonneville Fish Hatchery, Oregon's largest, stands near the lake.

Lake Bonneville was created in 1937 when Bonneville Dam was built on the Columbia River. The reservoir backs up the river from the dam to The Dalles Dam upstream, about 45 miles long and just under a mile wide at its widest point. It lies in Multnomah, Hood River and Wasco counties in Oregon and Skamania and Klickitat counties in Washington.

The reservoir lies beside the Bonneville Fish Hatchery, which the sources describe as the largest hatchery in Oregon. Its waters reach into five counties: Multnomah, Hood River and Wasco in Oregon, and Skamania and Klickitat in Washington. The name recalls Benjamin Bonneville, the army officer and explorer of the American West for whom the dam is named.

The reservoir runs about 45 miles from Bonneville Dam upstream to The Dalles Dam, so the two dams mark its downstream and upstream ends. It lies in Multnomah, Hood River and Wasco counties in Oregon and Skamania and Klickitat counties in Washington. The Bonneville Fish Hatchery, Oregon's largest, stands near the lake.

The reservoir is named after Bonneville Dam, but it is not the same as prehistoric Lake Bonneville in Utah, a much larger Pleistocene lake. Near the Oregon end of the reservoir lies the Bonneville Fish Hatchery, which the sources describe as the largest in Oregon.