Hat Rock State Park
|Hat Rock State Park|
|Location||Umatilla County, Oregon|
|Operated by||Oregon Parks and Recreation Department|
Hat Rock State Park is a state park in the U.S. state of Oregon, administered by the Oregon Parks and Recreation Department. The park is located off the east side of U.S. Highway 730 in Hermiston, on the south shore of Lake Wallula behind McNary Dam on the Columbia River.
Hat Rock is a geological formation that, along with another outcropping rock in the park called Boat Rock, are thought to be exposed remnants of a 12-million year old basalt flow. Floods from the Ice Age eventually left these bedrocks, as well as others along the Columbia River Gorge exposed at the surface of the Earth. It is 70 feet (21 meters) high.
- "Hat Rock State Park". Geographic Names Information System, U.S. Geological Survey. Retrieved 2011-06-21.
- Fanselow, Julie (2003). Traveling the Lewis and Clark Trail. Falcon. p. 252. ISBN 0-7627-2589-3.
- "McNary Dam and Lake Wallula". U.S. Army Corps of Engineers. Retrieved July 18, 2014.
- Bannan., Jan Gumprecht (2002). Oregon State Parks. Mountaineers Books. p. 212. ISBN 0-89886-794-0.
- "Hat Rock State Park". Oregon Parks and Recreation Department. Retrieved 2011-06-21.
- "McNary Master Plan". US Army Corps of Engineers. Retrieved 2011-06-21.
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