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Physiographic provinces
Columbia River
Large igneous provinces
Regions of Washington (state)
Regions of Oregon
Plateaus of the United States
Landforms of Hood River County, Oregon
Miocene volcanism
Pliocene volcanism
Landforms of Wasco County, Oregon
Landforms of Umatilla County, Oregon
Volcanism of Washington (state)
Landforms of Idaho

Columbia Plateau: page information

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Page ID697731

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Words228

OriginImported

CreatedJun 19, 2026, 5:07 AM

UpdatedJun 19, 2026, 5:07 AM