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The Middle River is a tributary of the Des Moines River in south-central Iowa in the United States. It is long〔U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. (The National Map ), accessed May 26, 2011〕 and drains an area of .〔Iowa Department of Natural Resources/Iowa Geological Survey. (Watershed Monitoring and Assessment: Middle River. )〕 Via the Des Moines River, it is part of the watershed of the Mississippi River. The Middle River rises in southwestern Guthrie County and initially flows southeastwardly through Adair County, then eastwardly through Madison County, then east-northeastwardly through Warren County, passing the towns of Casey, Winterset, Patterson, Bevington, Martensdale, Spring Hill and Carlisle.〔DeLorme (1998). ''Iowa Atlas & Gazetteer''. Yarmouth, Maine: DeLorme. ISBN 0-89933-214-5.〕 A substantial portion of the Middle River's course through Warren County has been straightened and channelized.〔 It joins the Des Moines River in Warren County near Carlisle, southeast of Des Moines.〔(Columbia Gazetteer of North America entry for Middle River )〕 A short headwaters tributary of the river is known as the South Fork Middle River. It rises near the western edge of Guthrie County, about a mile north of Adair, at an elevation of and flows generally east-southeast for about passing just south of Casey before turning northeast as it empties into the Middle River just east of Casey at an elevation of . ==See also== *List of Iowa rivers *Roseman Covered Bridge 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「Middle River (Iowa)」の詳細全文を読む スポンサード リンク
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