Hat Rock State Park
| Hat Rock State Park | |
|---|---|
 Hat Rock | |
   | |
| Type | Public, state |
| Location | Umatilla County, Oregon |
| Nearest city | Hermiston |
| Coordinates | 45°54′53″N 119°09′54″W / 45.9148548°N 119.1650109°W[1] |
| Operated by | Oregon Parks and Recreation Department |
Hat Rock State Park is a
U.S. Highway 730 in Hermiston,[2] on the south shore of Lake Wallula behind McNary Dam on the Columbia River.[3]
Flood basalt
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.[4] It is 70 feet (21 meters) high.
See also
References
- ^ "Hat Rock State Park". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved June 21, 2011.
- ISBN 0-7627-2589-3.
- ^ "McNary Dam and Lake Wallula". U.S. Army Corps of Engineers. Retrieved July 18, 2014.
- ISBN 0-89886-794-0.
External links
- "Hat Rock State Park". Oregon Parks and Recreation Department. Retrieved June 21, 2011.
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