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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.
The Columbia River (Chinookan: hayásh-tsəqʷ, meaning “great water”) [3] was a bustling hub of trade for Native Americans in the Pacific Northwest for centuries. In fact, archaeological evidence has proven that humans have inhabited the area for around 10 000 years.
Columbia: side genl 1850 Astoria, Oregon 90 27.4 75 1852 D [8] Columbia: 126880 stern psgr 1891 Little Dalles, WA: 152 46.3 534 378 1894 B [9] Columbia: C103892 prop tow 1896 Nakusp, BC 77 23.5 49 34 1920 D Columbia: 127689 stern psgr 1902 Blalock, Oregon: 77 23.5 159 106 1909 RN [N 32] Columbia: 202757 prop frt. 1905 Astoria, Oregon
The Willamette River flows northwards down the Willamette Valley until it meets the Columbia River at a point 101 miles (163 km) [2] from the mouth of the Columbia. In the natural condition of the river, Portland was the farthest point on the river where the water was deep enough to allow ocean-going ships.
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 ...
Pend Oreille River (British Columbia, Washington, Idaho; see below for sub-tributaries) Kootenay River (British Columbia, Idaho, Montana; see below for sub-tributaries) Hugh Keenleyside Dam and Arrow Lakes (British Columbia)
Priest Rapids was a narrow, fast-flowing stretch of the Columbia River, located in the central region of the U.S. state of Washington. It was flooded by the construction of the Priest Rapids Dam in the 1950s. Before the dam's construction, the river dropped 20 feet (6 m) over a short distance.
Okanogan coming downstream on the Okanogan River, circa 1910. Prior to the construction of dams, open navigability was never established throughout the Columbia.This was an important difference from the Mississippi-Ohio River system, which in the right season, and with a canal around the Falls of the Ohio, was navigable from New Orleans to Pittsburgh, an enormous distance.