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Where is the Columbia Plateau located?

Quick Answer

It is in the northwestern United States, mainly in eastern Washington, eastern Oregon, and western Idaho. The plateau was built by repeated basalt lava flows.

The Full Story

The Columbia Plateau is a broad basaltic plateau in the northwestern United States. It covers large parts of eastern Washington, eastern Oregon, and western Idaho. The plateau formed from successive lava flows associated with the Columbia River Basalt Group. Erosion by the Missoula floods later sculpted dramatic features such as the Channeled Scablands.

Key Facts

1.Spans Washington, Oregon, and Idaho
2.Built by basalt lava flows
3.Shaped further by Ice Age floodwaters

YouTube Angle

Suggested video title for this topic:

"A giant lava plateau carved by ancient megafloods."

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