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Map of the Columbia drainage Basin with the Columbia River highlighted and showing the major tributaries ... Upper Columbia. McNary Dam to Columbia Lake. Walla Walla ...
The Columbia River begins at Columbia Lake, flows north in the trench through the Columbia Valley to Windermere Lake to Golden, British Columbia.The Kootenay River flows south from the Rocky Mountains, then west into the Rocky Mountain Trench, coming within just over a mile (1.6 km) from Columbia Lake, at a point called Canal Flats, where a shipping canal was built in 1889.
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 Kootenai, Pend Oreille, and Spokane River Basins within the United States. Idaho, Montana, and Washington. 36,600 sq mi (95,000 km 2) HUC1701: 1702 Upper Columbia subregion: The Columbia River Basin within the United States above the confluence with the Snake River Basin, excluding the Yakima River Basin. Washington: 22,600 sq mi (59,000 km ...
The Narrows: Located between Upper Arrow Lake and Lower Arrow Lake, where the Columbia's water flowed swiftly as a river for about 14 miles (23 km); [66] centered at The lower, southern end of The Narrows, where the river emptied into Lower Arrow Lake, was located at Burton near Cariboo Creek, 49°59′N 117°55′W / 49.983°N 117.917 ...
The Columbia River (Upper Chinook: Wimahl or Wimal; Sahaptin: Nch’i-Wàna or Nchi wana; Sinixt dialect swah'netk'qhu) is the largest river in the Pacific Northwest region of North America. [14] The river forms in the Rocky Mountains of British Columbia , Canada.