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St. Paul District, U.S. Army Corps of Engineers: 150218-A-BF493-004
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St. Paul District, U.S. Army Corps of Engineers: 150218-A-BF493-035
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St. Paul District, U.S. Army Corps of Engineers: 150218-A-BF493-044
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St. Paul District, U.S. Army Corps of Engineers: 150218-A-BF493-062
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St. Paul District, U.S. Army Corps of Engineers: 150218-A-BF493-087
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St. Paul District, U.S. Army Corps of Engineers: 150218-A-BF493-091