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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. [11] The river forms in the Rocky Mountains of British Columbia, Canada.
The Columbia River Estuary is situated on the Oregon – Washington border and the Pacific Coast of the United States. It was traditionally inhabited by the Chinook Native Americans and discovered by settlers in 1788. The Estuary plays host to a plethora of species of marine and terrestrial flora and fauna, and multiple conservation ...
Steelhead, or occasionally steelhead trout, is the anadromous form of the coastal rainbow trout (Oncorhynchus mykiss irideus) or Columbia River redband trout ( O. m. gairdneri, also called redband steelhead ). [1] [2] Steelhead are native to cold-water tributaries of the Pacific basin in Northeast Asia and North America.
A large shad population occurs in the Columbia River. In recent years, shad counts at Bonneville and The Dalles Dams have ranged from over two million to over five million fish per year. Spawning shad return to the Columbia in May and June and migrate above Lower Granite Dam on the Snake River and above Priest Rapids Dam on the Upper Columbia ...
Opened in 1966, it is more than 4 miles long and built to withstand vicious currents and waves and winds of up to 150 mph howling through the Columbia River Gorge. But it was not built for this.
Nancy Creek (Washington) Katy Creek (Washington) Kettle River (Washington, British Columbia) Granby River (British Columbia) West Kettle River (British Columbia) Pend Oreille River (British Columbia, Washington, Idaho; see below for sub-tributaries) Kootenay River (British Columbia, Idaho, Montana; see below for sub-tributaries) Hugh ...
The Columbia River Gorge is a canyon of the Columbia River in the Pacific Northwest of the United States. Up to 4,000 feet (1,200 m) deep, the canyon stretches for over eighty miles (130 km) as the river winds westward through the Cascade Range, forming the boundary between the state of Washington to the north and Oregon to the south. [1]
The Columbia River Basalt Group (including the Steen and Picture Gorge basalts) extends over portions of four states. The Columbia River Basalt Group (CRBG) is the youngest, smallest and one of the best-preserved continental flood basalt provinces on Earth, covering over 210,000 km 2 (81,000 sq mi) mainly eastern Oregon and Washington, western Idaho, and part of northern Nevada.