sheer cliff

Cantwell Cliffs

Located 17 miles from Old Man's Cave in the northern reaches of the park, its remote location discourages casual visitors — but those who make the extra drive are rarely disappointed.

Conkle's Hollow State Nature Preserve

The deep, cool gorge, which is only 100 feet wide in places and is considered by some to be the deepest in Ohio, has numerous waterfalls cascading over its sandstone cliffs.