The park's signature Blackhand sandstone was deposited as a river delta during the Mississippian Period approximately 330 million years ago.
Ash Cave, the largest recess cave in the park, spans 700 feet from rim to rim.
The park landscape remained untouched by the most recent glacial advance, creating a 'refugium' that preserved species not found elsewhere in the region.
The 'Devil's Bathtub' is a deep, swirling pool formed by constant water erosion at a narrow point in a sandstone stream bed.
Cedar Falls is not a geological accident but is shaped by the resistant nature of the Blackhand sandstone layers.
The park provides habitat for the state-endangered hemlock woolly adelgid-sensitive eastern hemlock trees.
The name 'Old Man's Cave' refers to Richard Rowe, a hermit who lived in the cave during the late 1700s and was buried beneath it.
The park area served as a retreat for the Adena and Hopewell indigenous cultures long before European settlement.
Hocking Hills is home to the only designated wilderness area within the Ohio state park system.
The park's gorges maintain microclimates that remain significantly cooler than the surrounding ridge tops during summer months.
Hocking Hills State Park is defined by its dramatic Blackhand sandstone formations and deep recess caves carved by glacial meltwater. The park encompasses seven distinct areas, including Old Man’s Cave, Ash Cave, and Cedar Falls. The geological features are characterized by deep gorges and waterfalls situated within a mature hemlock forest. Visitors can access over 25 miles of marked hiking trails that traverse varied terrain ranging from moderate to difficult. The park contains the tallest waterfall in Ohio at Ash Cave, which features a massive horseshoe-shaped recess. Rock formations like the Devil's Bathtub offer unique hydrogeological sites featuring carved sandstone basins. The area remains a popular destination for rappelling and rock climbing, concentrated specifically at designated locations near the Hocking State Forest. The diverse ecosystem supports rare flora, including the eastern hemlock and various species of ferns that thrive in the cool, moist cliff environments.
The interior of Ash Cave looking out toward the waterfall and the sandstone canopy.
Download offline maps before arrival, as mobile reception is inconsistent within the deep gorges.
Visit the less-trafficked areas like Rock House or Conkles Hollow to avoid the peak crowds at Old Man's Cave.
Wear footwear with high-traction soles, as sandstone paths near waterfalls are perpetually slick.
Attempting to climb or touch cave walls, which contributes to erosion and damage to delicate geological formations.
Trails are generally open year-round, though specific sections may close temporarily following severe weather or for trail maintenance.
Stay on marked trails to protect fragile sandstone surfaces and moss-covered rock faces.
