A Spine-Tingling Drop Down The Country's Deepest Cave Pit — huffingtonpost.com

Ellison's Cave, located in northwest Georgia, is nearly 12 miles long and more than 1,000 feet deep. The cave -- and the hair-raising pits that lead to its floor -- attract spelunkers from all over the world. There are some seven routes to the cave floor, one of which includes a massive pit known as Fantastic. With a vertical drop that could fit almost two Statues of Liberty, this is the deepest cave plunge in the continental United States.

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