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State: Washington, Oregon: ... Bathymetric map of the mouth of the Columbia River. With an average flow at the mouth of about 265,000 cu ft/s (7,500 m 3 /s), [4] ...
Columbia River Basin, showing major dams and tributaries. Lower Columbia Basin. Wallacut River; ... USGS Hydrologic Unit Map - State of Washington (1974)
Similkameen River (British Columbia, Washington) Tulameen River (British Columbia) Pasayten River (British Columbia, Washington) Okanagan Lake (British Columbia) Chief Joseph Dam and Rufus Woods Lake (Washington) Nespelem River (Washington) Grand Coulee Dam and Franklin D. Roosevelt Lake (Washington) Sanpoil River (Washington) Spokane River ...
Columbia River History. Northwest Power and Conservation Council "Appendix C. Pertinent Data on Selected Projects" (PDF). Columbia River Water Management Report, Water Year 2001. US Army Corps of Engineers. Archived from the original (PDF) on 2009-01-10
The Columbia Basin. 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 km 2 or 258,000 sq mi. [1] In common usage, the term often refers to a smaller area, generally the portion of the drainage basin that lies within eastern Washington.
White Salmon, Washington; Hood River, Oregon; Carson River Valley, Washington; Stevenson, ... Tributaries of the Columbia River; Hydroelectric dams on the Columbia River
Dams of the Columbia River Basin. Click to view higher resolution and read legend. Hydroelectric generators in the basin sized by capacity. 17 dams on the British Columbia side of Canada-US border not shown. There are more than 60 dams in the Columbia River watershed in the United States and Canada. Tributaries of the Columbia River and their ...
The Columbia Plateau is an important geologic and geographic region that lies across parts of the U.S. states of Washington, Oregon, and Idaho. [1] It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains , cut through by the Columbia River .