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Wood River is a 〔U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. (The National Map ), accessed May 13, 2011〕 tributary of the Mississippi River, which it joins near East Alton, Illinois, to the northeast of St. Louis, Missouri. The Wood River is formed by the confluence of its West and East forks. These come together near where they drop down from the Mississippi bluffs. The natural channel of the Wood River used to follow the Mississippi through the bottoms before joining it. This has been cut off by an artificial channel that runs through flood control structures directly to the Mississippi. The West Fork of the Wood River is long, and the East Fork is long.〔 Honeycut Branch is a major tributary of the West Fork, and Girder Branch is a major tributary of the East Fork. The mouth of the Wood River was a highly industrialized area during much of the 20th century. The Olin Chemical plant produced explosives and munitions for the wars of the last century. This remains as the Winchester ammunition plant. The Wood River petroleum refinery continues to operate on a reduced scale. ==Cities, towns and counties== The following cities, towns and villages are in the Wood River watershed: *Alton *Bethalto *East Alton *Wood River *Woodburn The following Illinois counties are drained in part by the Wood River: *Jersey County *Macoupin County *Madison County 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「Wood River (Illinois)」の詳細全文を読む スポンサード リンク
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