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Hat Rock State Park: Wikis


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Hat Rock State Park
Anchor landmark within Hat Rock State Park
Type Public, state
45°54′53″N 119°09′54″W / 45.9148548°N 119.1650109°W / 45.9148548; -119.1650109Coordinates: 45°54′53″N 119°09′54″W / 45.9148548°N 119.1650109°W / 45.9148548; -119.1650109[1]
Operated by Oregon State Parks and Recreation Department

Hat Rock State Park is a state park in the U.S. state of Oregon, administered by the Oregon State Parks and Recreation Department. The park is located off the east side of U.S. Highway 730 in Hermiston,[2] on the south shore of Lake Wallula behind McNary Dam on the Columbia River.


Flood basalt

Rock formation for which the park got its name.

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.[3]


  1. ^ U.S. Geological Survey Geographical Names Information System: Hat Rock State Park
  2. ^ Julie Fanselow. Traveling the Lewis and Clark Trail Accessed 9 jan 2008. Published by Falcon, 2003; pp 252. ISBN 0762725893
  3. ^ Jan Gumprecht Bannan. Oregon State Parks Accessed 8 jan 2008. Published by The Mountaineers Books, 2002; pp 212. ISBN 0898867940

See also

External links



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