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30 Wild Michigan Facts: Soo Locks, Great Lakes & Ancient Coral
Discover 30 surprising facts about Michigan, from the Soo Locks at Sault Sainte Marie to ancient coral fossils found on its beaches. This countdown explores the state's geography, natural history, and vital role in American steel production.
Around 80 million tons of freight pass through the Soo Locks each year, including much of the iron ore used to make American steel. Powered entirely by gravity, the locks use 22 million gallons of water per transit to raise or lower ships 21 feet between Lake Superior and the lower Great Lakes.
The Poe Lock, rebuilt in 1968 with a planned 50-year…
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