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USGS/Cascades Volcano Observatory, Vancouver, Washington

Columbia Plateau
Columbia River Basin
Columbia River Flood Basalts

Map, Columbia River Flood Basalts

Summary, Columbia River Flood Basalts, click to enlarge
Learn MORE about this Area,
Flood Basalts, Lava Plateaus, and Ice Age Floods

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08/26/02, Lyn Topinka