Lake Billy Chinook, Madras

4.1
Lake Billy Chinook is a reservoir in Jefferson County in the U.S. state of Oregon. Created by the Round Butte Dam in 1964, Lake Billy Chinook lies in a canyon at the confluence of the Crooked, Deschutes, and Metolius rivers near Culver and Madras. It was named for Billy Chinook, a Native American of the Wasco tribe who traveled alongside American explorers John C. Frémont and Kit Carson in their expeditions of 1843 and 1844.GeologyThe canyon in which Lake Billy Chinook lies was carved by the three rivers that flow into the lake. The Deschutes Formation into which it is carved began forming about 11 million years ago, as alternating layers of basaltic lava, stream sediment, and volcanic debris flowed into the area from the Cascade Range. One to three million years ago, lava flows from the Cascades and Newberry Volcano capped the exposed material, forming the "rimrock basalt" which is visible atop the canyon. Further erosion by the three rivers, volcanic activity, and wind have continued to form and erode the canyon.
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Lake Billy Chinook Reviews
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TripAdvisor Traveler Rating 4.5
74 reviews
TripAdvisor
  • what a surprise this place was...take the camera or take the family....it is very scenic...go to the look outs too...maybe even drive right thru from one end to the other...  more »
  • Very nice lake to explore, has 3 main arms from valleys cut by three rivers. Sheer cliffs of basalt columns left by ancient lava flows.  more »
  • we were in the area for the eclipse and one of our neighbors said you gotta go and see this place... so we took a short drive and were pleasantly surprised there was plenty of camping areas and picnic...  more »

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