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Commerce and Development of the Great Lakes
US Coast Guard cutter, ""Woodrush"", breaking ice" "US Coast Guard cutter, ""Woodrush"", breaking ice",
Great Lakes
Minnesota Sea Grant


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Ice-covered Great Lakes ship arriving in Duluth ship canal, Duluth, Minnesota Ice-covered Great Lakes ship arriving in Duluth ship canal, Duluth, Minnesota
US Army Corps of Engineers, photo by Jerry Bielicki

 

 


 


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Great Lakes freighter leaving Duluth harbor, Great Lakes freighter leaving Duluth harbor,
Duluth, Minnesota
Minnesota Extension Service, Don Breneman


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Boats docked, Muskegon, Michigan Boats docked, Muskegon, Michigan
Michigan Sea Grant, Carol Y. Swinehart
 


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Great Lakes ship, Lake Michigan Great Lakes ship, Lake Michigan
Michigan Sea Grant

 

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Ocean vessel assisted by two tugboats in Duluth-Superior harbor Ocean vessel assisted by two tugboats in Duluth-Superior harbor, Duluth, Minnesota
US Army Corps of Engineers, photo by Jerry Bielicki


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Great Lakes ship assisted by tugboat Great Lakes ship assisted by tugboat,
Duluth, Minnesota
US Army Corps of Engineers, photo by Jerry Bielicki



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Tugboat assisting ship, Duluth, Minnesota Tugboat assisting ship, Duluth, Minnesota
US Army Corps of Engineers, photo by Jerry Bielicki
 

 

 

 

 

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Ocean vessel loading grain at elevator, Ocean vessel loading grain at elevator,
Superior, Wisconsin
US Army Corps of Engineers, photo by Jerry Bielicki


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Calmut Sag Channel, Calumet Park, Illinois Calumet Sag Channel, Calumet Park, Illinois
Illinois-Indiana Sea Grant, photo by David Riecks



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hip at ore dock, Duluth, Minnesota Ship at ore dock, Duluth, Minnesota
US Army Corps of Engineers



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Ocean vessel at the Soo Locks, Ocean vessel at the Soo Locks,
Sault Ste. Marie, Michigan
US Army Corps of Engineers, photo by Jerry Bielicki


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Great Lakes ship in Duluth-Superior harbor Great Lakes ship in Duluth-Superior harbor
Duluth, Minnesota
US Army Corps of Engineers, photo by Jerry Bielicki


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Ship arriving in Duluth ship canal Ship arriving in Duluth ship canal
Duluth, Minnesota
US Army Corps of Engineers, photo by Jerry Bielicki


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Ocean vessel being docked Ocean vessel being docked
Unknown
US Army Corps of Engineers, photo by Jerry Bielicki










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Ship in harbor, Duluth, Minnesota Ship in harbor, Duluth, Minnesota
US Army Corps of Engineers, photo by Jerry Bielicki

 

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Port Calcite ships loading, Rogers City, Michigan Port Calcite ships loading, Rogers City, Michigan
Michigan Travel Bureau

 

Detroit Harbor Terminal, Detroit, Michigan Detroit Harbor Terminal, Detroit, Michigan
Michigan Travel Bureau

 

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Detroit River, Detroit, Michigan Detroit River, Detroit, Michigan
Michigan Travel Bureau

 

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Boat on Detroit River, Windsor, Ontario Boat on Detroit River, Windsor, Ontario
Michigan Sea Grant Extension, Carol Y. Swinehart

 

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""Agawa Canyon"" on the Saginaw River - Independence Bridge, Bay City, Michigan ""Agawa Canyon"" on the Saginaw River - Independence Bridge, Bay City, Michigan
Center for Great Lakes & Aquatic Sciences, David Jude


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lumet Sag Channel, Indiana Calumet Sag Channel, Indiana
Illinois-Indiana Sea Grant, photo by David Riecks

 

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Ship under Duluth Aerial Lift Bridge Ship under Duluth Aerial Lift Bridge
Duluth, Minnesota
US Army Corps of Engineers


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Ocean vessel loading grain, Superior, Wisconsin Ocean vessel loading grain, Superior, Wisconsin
US Army Corps of Engineers, photo by Jerry Bielicki

 

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Deck view of grain loading onto an American straight decker Deck view of grain loading onto an American straight decker, Superior, Wisconsin
US Army Corps of Engineers, photo by Jerry Bielicki

 

 

 

 

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Self unloader unloading limestone at Hallet Dock No. 6 Self unloader unloading limestone at Hallet Dock No. 6
Duluth, Minnesota
US Army Corps of Engineers, photo by Jerry Bielicki


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