Ash Cave

Ohio's biggest recess cave with a 90‑ft seasonal waterfall

InsideHocking Hills State Park

Overview

Ash Cave is the park’s showstopper: a colossal Black Hand Sandstone amphitheater roughly 700 feet wide, about 100 feet deep, and rimmed at 90 feet. A slender, seasonal waterfall drops from the rim into a sandy bowl, dramatic after rains and often sculpted into ice in winter.

Geology

Water, wind, and freeze–thaw cycles exploited softer layers within the Black Hand Sandstone, undercutting the middle while tougher caprock lingered above—classic rock‑shelter formation. Water follows cracks at the rim to feed the falls and plunge pool below.

Human History

The name comes from massive deposits of ash found on the floor; an 1877 dig uncovered bone, pottery, corn cobs, and flints, reflecting long Indigenous use as a shelter and travel stop. In the 1800s locals gathered here for meetings, with “Pulpit Rock” near the entrance serving as a natural speaker’s stand.

The Hike

Most visitors do a simple loop of about 0.5 miles. Stroll a paved Gorge Trail a quarter‑mile through a narrow, shady ravine to the cave floor, then climb steps to the Rim Trail to complete the loop. If you’ve got more time, you can continue from the top on the Buckeye/Grandma Gatewood Trail about 2.3 miles to Cedar Falls.

Plants & Wildlife

This cool, moist gorge shelters eastern hemlock and beech and lights up in spring with trillium, Dutchman’s breeches, trout lily, jack‑in‑the‑pulpit, and jewelweed. Birders should listen for hermit thrush and scan for warblers—black‑throated green, Blackburnian, magnolia, Canada, even cerulean—in spring and summer.

Facilities & Rules

Parking sits on both sides of OH‑56 at the Ash Cave entrance. You’ll find restrooms (latrine‑style) and picnic tables by the trailhead; there’s also a reservable day‑use shelter. Stay on marked trails and keep pets leashed. No wading or swimming in pools or creeks. Trails are day‑use only and close at/after sunset.

Best Time to Visit

For the falls, aim for spring or anytime after steady rain; winter frequently delivers striking ice formations. To dodge crowds, go early or on weekdays. If you want a quieter experience, linger after the morning rush and let mid‑day tour groups thin out before late afternoon.

Pros

Largest recess cave in Ohio with a 90‑ft seasonal waterfall
Short, easy 0.5‑mile loop with a paved gorge approach
Trailhead area has parking, restrooms, and picnic tables

Cons

Very popular; parking and trails can be crowded on weekends
Waterfall may be a trickle outside spring or after rain

Tips

Arrive early or visit on weekdays—this spot fills fast.
Do the loop clockwise: paved gorge in, then return via the rim steps.
After the cave, continue 2.3 miles on the Buckeye/Grandma Gatewood Trail to Cedar Falls.
If the small lot by the trail is full, use the larger lot across OH‑56.
For flush restrooms, stop at the Old Man’s Cave Visitor Center; trailhead toilets are latrines.