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Annual generation. 5,170 GWh [1] [2] McNary Dam is a 1.4-mile (2.2-km) long concrete gravity run-of-the-river dam which spans the Columbia River. It joins Umatilla County, Oregon with Benton County, Washington, 292 miles (470 km) upriver from the mouth of the Columbia. [3] It is operated by the U.S. Army Corps of Engineers ' McNary Lock and Dam ...
The Columbia sculpin ( Cottus hubbsi) is a species of fish in the family Cottidae. It is found in the United States and Canada, inhabiting the Columbia River drainage and Harney Basin in Oregon, British Columbia, Idaho, Washington, and Nevada. It reaches a maximum length of 11.2 cm. [2] It prefers rocky riffles of headwaters and creeks.
You can catch a Northern Pikeminnow just about anywhere on the Columbia River. They tend to congregate in rocky areas with a fast current, like near dams, islands, stream mouths and river bars.
The Columbia River redband trout, [1] the inland redband trout [2] or the interior redband trout [1] ( Oncorhynchus mykiss gairdneri) is one of three redband trout subspecies of the rainbow trout in the family Salmonidae. [3] It is native in the Columbia River and its tributaries in Idaho, Oregon, Washington and Montana.
Cowlitz River. / 46.65444°N 121.62028°W / 46.65444; -121.62028. / 46.09778°N 122.91111°W / 46.09778; -122.91111. The Cowlitz River is a river in the state of Washington in the United States, a tributary of the Columbia River. Its tributaries drain a large region including the slopes of Mount Rainier, Mount Adams, and Mount ...
Many steamboats operated on the Columbia River and its tributaries, in the Pacific Northwest region of North America, from about 1850 to 1981. Major tributaries of the Columbia that formed steamboat routes included the Willamette and Snake rivers. Navigation was impractical between the Snake River and the Canada–US border, due to several ...
Fish counter. Automatic fish counters are automatic devices for measuring the number of fish passing along a particular river in a particular period of time. Usually one particular species is of interest. One important species studied by fish counters are Atlantic salmon. This species is of interest owing to its ecologically vulnerable status ...
0 cu ft/s (0 m 3 /s) • maximum. 18,400 cu ft/s (520 m 3 /s) The Chelan River is a tributary of the Columbia River, in the U.S. state of Washington. Just 4.1 miles (6.6 km) long, it is the shortest river in Washington. [3] Lake Chelan Dam is located at the river's source: the outlet of Lake Chelan. Nearly the entire river's flow is diverted to ...