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The Whitewater River is a 〔U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. (The National Map ), accessed October 4, 2012〕 tributary of the Upper Mississippi River which flows through the Driftless Area of Minnesota, reaching its mouth in Wabasha County at the community of Weaver opposite Buffalo, Wisconsin. The nearest towns are Altura, Saint Charles, and Elba. The region hosts endangered native dry oak savannas, semiforested areas that seem to have been dependent on fire for their well-being.〔(1993 Proceedings of the Midwest Oak Savanna Conferences" ), United States Environmental Protection Agency, Retrieved July 12, 2007〕 The main stem of the Whitewater River is formed by the confluence of the North and Middle forks at Elba, and is joined by the South Fork just downstream. The North Fork flows through Wabasha, Olmsted, and Winona counties, with a "channel length of 47 km"〔Mast, M.A., and Turk, J.T., 1999, ("North Fork Whitewater River: Environmental characteristics and water quality of Hydrologic Benchmark Network stations in the Midwestern United States, 1963-95", ) U.S. Geological Survey Circular 1173-B, Retrieved July 12, 2007〕 (c. 30 miles). The state maintains Whitewater State Park on the upper reach of the main stem, on the Middle Fork and on Trout Run Creek. Crystal Springs Fish Hatchery is located on the lower portion of the South Fork.〔(Basin Alliance for the Lower Mississippi in Minnesota, February 4, 2004 ), Retrieved July 12, 2007〕 Whitewater River is the English translation of the native Sioux language name. ==Conservation and restoration== In the 1990s the Minnesota Department of Natural Resources restored nearly of the river (including a straight channel dug in the 1950s) to a more natural, meandering form. Designed to allow the river to access its floodplain, the restored section is supposed to disperse high water levels over a relatively wide area and reduce shoreline erosion.〔Kallok, Michael A. ''Minnesota Conservation Volunteer'' (March–April 2008). Minnesota Department of Natural Resources. 74-75.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Whitewater River (Minnesota)」の詳細全文を読む スポンサード リンク
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