Columbia Basin

Columbia River Basalt Group

Columbia River Basalt Group map shows main regions of basalt exposure in Washington, Oregon, Idaho and Nevada, USA. (usgs.gov)

basin

Pasco Basin

basin of

Columbia River

history

Vashon glacier begins to melt and recede from Puget Sound region and Columbia Basin around 16,900 years ago (historylink.org)

random

Blocked highway in Bellingham

tags

basin

Wikipedia

Columbia River drainage basin (Wikipedia) The Columbia River drainage basin is the drainage basin of the Columbia River in the Pacific Northwest region of North America. It covers 668,000 km2 or 258,000 sq mi. In common usage, the term often refers to a smaller area, generally the portion of the drainage basin that lies within eastern Washington.