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Illinois

Beringia

(5,650 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, 09:38 AM

Mar 2026

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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Coldwater

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State of the Great Lakes 2025 Report [View all] Beringia Feb 2026 OP

Under the Great Lakes Coldwater Feb 2026 #1

I found this online, so you're right. Far from my domain of interest though Beringia Mar 2026 #3

Thanks Coldwater Mar 2026 #4

Thanks for the info. tazcat Feb 2026 #2