There are approximately 14 dams on the Columbia River.
13 Major tributaries enter the Columbia River in various locations and with various discharges.
The Columbia river is the home of the Grand Coulee Dam which was created as a irrigation dam and evolved into a power source for Hanford.
Salmon, steelhead, sturgeon, and Wall-eye fish in habit the Columbia River.
Hanford Nuclear Facility discharges into the Columbia River.
Numerous industrial facilities line the shores of the Columbia River.
http://assets.espn.go.com/winnercomm/outdoors/fishing/i/P2_f_fea_sturgeon_Sutton4.jpg
http://en.wikipedia.org/wiki/Columbia_River
