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The Tallest Underground Waterfall You Can Visit in the U.S. Is Hidden Inside This Tennessee Mountain

You may come to Lookout Mountain for Ruby Falls, but you’ll stay for the scenic views and outdoor adventures. Ruby Falls is an underground waterfall located over 1,000 feet beneath Lookout Mountain in ...
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The Tallest Underground Waterfall You Can Visit in the U.S. Hides Inside a Tennessee Mountain

Ruby Falls is one of those places that stays with you long after you leave. Tucked more than 1,000 feet beneath Lookout Mountain in East Tennessee, this underground waterfall pairs dramatic cave ...