Soo Locks. Workers driving carts over the closed gates of the MacArthur Lock at the Soo Locks, Sault Ste Marie, Michigan, USA. These locks on the St. Mary's River enable shipping between Lake Superior and the lower Great Lakes. They are operated by the US Army Corps of Engineers, and raise or lower ships 21 feet. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / West, Jim |
Bildgröße: | 6569 px × 2661 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |