Lake freighters, or Lakers, are
cargo vessels that work the
Great Lakes. The most well-known is the
SS Edmund Fitzgerald, the latest major vessel to be wrecked on the Lakes. These vessels are traditionally called boats, not ships. Visiting ocean-going vessels are referred to as "salties." Due to their additional
beam, very large salties are never seen inland of the
St Lawrence Seaway. Because the largest of the
Soo Locks is larger than any Seaway lock, salties that can pass through the Seaway may travel anywhere in the Great Lakes. Because of their deeper draft, salties may accept partial loads on the Great Lakes, "topping off" when they have exited the Seaway. Similarly, the largest Lakers are confined to the Upper Lakes (
Superior,
Michigan,
Huron,
Erie) because they are too large to use the Seaway locks, beginning at the
Welland Canal that bypasses the
Niagara River.
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