The lake drained like a bathtub.
- That very thing happened in Louisiana once.
- In 1980 at Lake Peignure in LA Texaco drilled in the middle of the lake into a salt mine.
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Just followed up on those links..... very interesting and I can’t believe I missed that event (I worked in a salt mine many years ago).... and it occurred just a few miles to the northwest of Avery Island.