Deschutes-Columbia Plateau
Another Oregon Geologic Province

Between 14 and 16 million years ago, fissue volcanic eruptions in eastern Washington, eastern Oregon, and western Idaho produced enormous volumes of molten Columbia River basalt that flowed like water west into the Deschutes-Columbia Plateau.

As the basalt cooled and congeal, it formed the columnar cliffs that dominate the landscape today. Erosion by the Columbia River has exposed a particularly spectacular sequence of these rocks in the Columbia River Gorge on Oregon's northern boundary.

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The Most Anticipated Upcoming Oregon Events Are: Hometown Holiday Toledo December 12 Rickreall Christmas Pageant Rickreall December 10 thru December 12 Horse-drawn Elk Viewing Tours North Powder December 18 thru February 28 History of Communities on the Lower Umpqua River Reedsport continuing thru December 17 Annual Rogue Valley Toy Run Medford December 5

Other upcoming events include: Holiday Music Festival La Grande December 5 thru December 6 Parade of Lights Elgin December 5 Whale of a Christmas Depoe Bay December 5 Oddwater - Where it's OK to be weird Newport continuing thru January 1 Carriage Rides in the Old Mill District Bend November 27 thru December 23