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The Columbia River Gorge was formed by a complex interplay of flood basalt deposition, basin subsidence, and faulting.
Columbia Gorge Hike - The Dalles Riverfront Trail
Waterfall Wonderland: The Columbia River Gorge - In the Know Traveler
Columbia gorge discover center hi-res stock photography and images
Mt. Hood and the Columbia River Gorge
Columbia Gorge Discovery Center - Lewis and Clark National Historic Trail Experience
Columbia River Gorge National Scenic Area: Our Recommendations For Places To See — Pacific North Wanderers
Oregon: Mt. Hood & Columbia River Gorge - Lewis and Clark National Historic Trail Experience
The Columbia River Gorge - Discover Lewis & Clark
Multnomah Falls & Columbia River Gorge Tour – PDX03 – Gray Line of Oregon
Two Memorable Museums on the Columbia River Gorge
Hail, Columbia! - True West Magazine
Columbia Gorge Discovery Center – Official Interpretive Center of
Vancouver and the Washington Side of the Columbia River Gorge – Hit the Road in the Pacific Northwest
