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Illinois

Beringia

(5,464 posts)

3. I found this online, so you're right. Far from my domain of interest though

Reply to Coldwater (Reply #1)

Sun Mar 1, 2026, 08:38 AM

3 hrs ago

One of the world's largest salt deposits lies beneath the Great Lakes region, specifically within the Michigan Basin. The Goderich salt mine beneath Lake Huron is the world's largest, extending roughly 7 square kilometers. This massive, ancient sedimentary deposit runs under Lake Huron, Lake Erie, and Michigan, supplying vast amounts of road salt

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State of the Great Lakes 2025 Report [View all] Beringia 20 hrs ago OP

Under the Great Lakes Coldwater 20 hrs ago #1

I found this online, so you're right. Far from my domain of interest though Beringia 3 hrs ago #3

Thanks for the info. tazcat 17 hrs ago #2