Columbia Plateau

between

census-designated place

Vantage, Washington

cities

mountain range

Wallowa Mountains

plateau of

random

Vashon Glaciation

surface

The peculiar and picturesque loess hills which characterize the Palouse Prairie are underlain by wind-blown sediments of the Palouse Loess that covers the surface of over 50,000 km2 (19,000 sq mi) on the Columbia Plateau in southeastern Washington, western Idaho, and northeastern Oregon.

tags

plateau

Wikipedia

Columbia Plateau (Wikipedia) The Columbia Plateau is a geologic and geographic region that lies across parts of the U.S. states of Washington, Oregon, and Idaho. It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains, cut through by the Columbia River.