![](http://www.alamy.com/thumbs/6/44A4CF21-7771-411D-82FF-2AD9AEE5BEF3/TDHTRM.jpg)
OVERALL VIEW OF DAM, LOOKING NORTH (UPSTREAM) - Upper Mississippi River 9-Foot Channel Project, Lock and Dam 26R, Alton, Madison County, IL; Army Corps of Engineers
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Photo credit: © Tango Images / Alamy / Afripics
License: Licensed
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