St. Paul District, U.S. Army Corps of Engineers:
Lock and Dam 2
St. Paul District, U.S. Army Corps of Engineers:
Lock and Dam 2
St. Paul District, U.S. Army Corps of Engineers:
Lock and Dam 2
St. Paul District, U.S. Army Corps of Engineers:
Lock and Dam 2
St. Paul District, U.S. Army Corps of Engineers:
Lock and Dam 2
St. Paul District, U.S. Army Corps of Engineers:
Lock and Dam 2
St. Paul District, U.S. Army Corps of Engineers:
Lock and Dam 2
St. Paul District, U.S. Army Corps of Engineers:
Lock and Dam 2