06-22-2018, 06:27 PM
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Senior Member
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Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
Thanks: 3,506
Thanked 136,542 Times in 22,784 Posts
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The Great Blue Hole of Belize
The gigantic circle, about 1,043 feet across and 407 feet deep, was formed after a series of glacial events when the sea levels were much lower than they are today.
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