By A Mystery Man Writer
Columbia River - Wikipedia
The Columbia River Basin provides more than 40% of total U.S. hydroelectric generation - U.S. Energy Information Administration (EIA)
Columbia Basin Map — Mitchell Geography
Map of Columbia River Basin with the mainstreams outlined in blue
Columbia River, Location, Length, History, & Facts
Projects to restore Columbia River Basin health in Oregon get $31 million - OPB
Columbia Basin Passage Barriers - CRITFC
About EPA's Work in the Columbia River Basin
Columbia River
The Columbia River Basin is the basis for defining the larger bioregion known as…
Plan to restore salmon populations receives $208 million
Columbia Basin ESA map