Cliff Run

Natural History. Cliff Run Preserve is a rare and striking example of a karst landscape, showcasing classic features such as bluffs, sinkholes, seeps, springs, grottos, and a mile-long dolomite canyon with sheer vertical walls. These formations support intact and thriving native ecosystems, reflected in the preserve’s abundant spring wildflowers, exceptional water quality, and impressive tree diversity.

Karst landscapes are uncommon in Ohio, as most of the state’s limestone and dolomite bedrock lies buried beneath thick layers of glacial till. Cliff Run’s exposed karst formations make it both a geological treasure and a haven for biodiversity.

In spring, the preserve offers one of the densest wildflower displays in a region already celebrated for its blooms. Many species here are adapted to the alkaline soils created by the dolomite bedrock, including hepatica, columbine, smooth cliff brake, miterwort, Sullivantia, and walking fern.

The preserve also protects the watershed of Cliff Run and its scenic tributary, Lewis Family Gorge. This gorge, with its sheer dolomite cliffs and flat, pavement-like rock floor, was one of the key inspirations for protecting this land. Both Lewis Family Gorge and the ravine carved by Cliff Run provide habitat for rich communities of macroinvertebrates and cold-water fauna, such as the mottled sculpin, a species that thrives only in clean, cold streams.

Preserve history: The story of Cliff Run Preserve is one of persistence, community, and a little bit of luck. Over seven years and three acquisitions, the Arc of Appalachia worked to piece together the 300-acre preserve we see today.

One of the most pivotal moments came in 2019, when parcels of land along Cliff Run and Lewis Gorge went up for auction. Against steep competition, our nonprofit partner Wilderness East—backed by the Arc—successfully secured 50 critical acres, ensuring the protection of the gorge’s southeast quadrant. In a twist of fate, even the seller rejoiced when she learned the land her sister had loved would be forever preserved.

The final piece of the puzzle came a few years later, when the Arc purchased the southwest corner from a longtime resident who named her land “Crystal Springs.” Her story became intertwined with the Arc’s mission, and through perseverance and community support, her beloved springs joined the preserve.

Today, Cliff Run stands fully protected. Thanks to grants, donors, and countless hours of stewardship, the preserve now boasts thoughtfully designed trails, bridges, and restored habitats. What began as a daunting vision is now one of the Arc’s most beautiful preserves, a testament to the miracle-workers who made it possible.