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Hocking Hills State Park is the most popular park in Ohio, and Old Man's Cave is the most popular location in the park. Old Man's Cave is not a cave in the traditional sense of an underground limestone cavern. Instead it is a deep gorge with a large, overhanging lip made of erosion-resistant, blackhand sandstone. The stream that runs through the gorge is marked by a series of waterfalls and rapids. This region is known as "Old Man's Cave" because one side of the gorge has a recess cave where an "old
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