Upper Midwest Environmental Sciences Center
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| Lock and Dam 26 to Grand Tower |
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The first region of the Open River extends from Lock and Dam 26 to Grand Tower. |
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| Grand Tower to the confluence of the Ohio River | |
Grand Tower to the Ohio River is the Center's study reach for the Long Term Resource Monitoring Program. |
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| Long Term Resource Monitoring Program Field Station - Open River | |
Open River is the term used to describe unimpounded reach of the Upper Mississippi River, downstream from the navigation dams. |
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/rivers/upper_mississippi/reach_3/sel_a_pool_r3.html
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified:
October 2, 2007
