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Palouse Falls, Palouse Falls State Park, Washington State Parks, Eastern Washington, Columbia Basin, waterfall, Palouse Falls State Park, Washington State Parks, Eastern Washington, Pacific Northwest, basalt rock formations, Geology of the Columbia Basin,
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RRRT3, Palouse Falls, Palouse Falls State Park, Washington State Parks, Palouse River, Eastern Washington, Basalt formation, Columbia Basin, Pacific Northwest, waterfalls, waterfall, western rivers, Palouse Falls State Park, Washington State Parks, Eastern Washington, Pacific Northwest, basalt rock formations, Geology, Columbia Basin, waterfalls, Channled Scablands