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The Cowlitz River has three major hydroelectric dams, with several small-scale hydropower and sediment retention structures within the Cowlitz Basin. The Cowlitz Falls Project is a 70 megawatt hydroelectric dam built in the early 1990s and completed in 1994. The dam is 140 feet (43 m) high and 700 feet (210 m) wide.
The main river and tributaries are (sorted in order from the mouth heading upstream): ... Cowlitz: 169 6,698 286.6 Kalama: 72 530 34.5 Lewis: 153 2,709 173.4 Lake: 18 260
The Elochoman River's headwater's start from Elochoman Lake, in Cowlitz County, [3] from which it flows west for several miles. Joined by the tributary East Fork [5] and North Fork, [6] the main river turns south. After a few miles, the West Fork tributary joins. [7] From there the main Elochoman River flows south and southwest.
Shore length 1. 52 mi (83.7 km) [2] Surface elevation. 778.5 ft (237 m) [2] References. [1][2][3] 1 Shore length is not a well-defined measure. Riffe Lake is a long reservoir on the Cowlitz River in the U.S. state of Washington. The 23.5 mi (38 km) lake was created by the construction of Mossyrock Dam, the tallest dam in the state, [4] in 1968 ...
The Toutle River is a 17.2-mile (27.7 km) tributary of the Cowlitz River in the U.S. state of Washington.It rises in two forks merging near Toutle below Mount St. Helens and joins the Cowlitz near Castle Rock, 20 miles (32 km) upstream of the larger river's confluence with the Columbia River.
The term Cowlitz people covers two culturally and linguistically distinct indigenous peoples of the Pacific Northwest; the Lower Cowlitz or Cowlitz proper, and the Upper Cowlitz / Cowlitz Klickitat or Taitnapam. Lower Cowlitz refers to a southwestern Coast Salish people, which today are enrolled in the federally recognized tribes: Cowlitz ...
Mossyrock Dam is a concrete arch-gravity dam on the Cowlitz River near Mossyrock in Lewis County, Washington, United States. The reservoir created by the dam is called Riffe Lake. The primary purpose of the dam is hydroelectric production while flood control is a secondary function. [1] The dam is the tallest in Washington state [3] and its ...
The Cowlitz Indian population declined significantly from the 1829-1830 smallpox outbreak. European explorers discovered and began navigating the Columbia River in 1792 as British Lieutenant W. R. Broughton sailed up the river to and past present day Cowlitz County. Then on November 5, 1805, Lewis and Clark camped at the mouth of the Kalama ...