John Day Lock and Dam

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The John Day Lock and Dam, 24 miles upriver from The Dalles and six miles east of Stonehenge, gave birth to Lake Umatilla and produces enough electricity for two cities the size of Seattle.

Here you’ll find one of the largest single-lift locks in the world, hefting vessels 113 feet. At the dam on Oregon’s I-84, enjoy the fish-viewing room, visitors’ gallery, and Giles French Park, which has a boat launch, a picnic area, and fishing.

A good portion of the power generated is used in the enormous Columbia Aluminum Corporation plant that stretches for two-thirds of a mile next to the dam.

Camp for free at undeveloped Cliffs Park, approximately three miles off the highway on John Day Road.

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