1. GENERAL VIEW OF DAM, DOWNSTREAM SIDE, LOOKING FROM TOE OF DIKE - Mississippi River 9-Foot Channel Project, Lock & Dam No. 17, Upper Mississippi River, New Boston, Mercer County, IL
Photo(s): 78 | Data Page(s): 15 | Photo Caption Page(s): 5
United States Library Of Congress Duplication Services Library Of Congress Duplication Services Duplication Services Web Historic American Buildings
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