The preserve is a remnant of the last glacial retreat, creating a microclimate that allows boreal species to thrive in Ohio.
It is one of the most biologically diverse spots in the state, housing over 40% of Ohio's rare or endangered plant species.
The fen's water remains at a near-constant temperature of 52 degrees Fahrenheit year-round due to groundwater upwelling.
The site hosts a significant population of the rare bog copper butterfly.
The boardwalk system was constructed specifically to protect the fragile peat soil from human compaction.
It remains one of the few places in the Midwest where white cedar trees naturally dominate the landscape.
Cedar Bog Nature Preserve is Ohio's first nature preserve and a National Natural Landmark featuring a rare alkaline fen ecosystem. The site contains a wooden boardwalk trail extending 1.2 miles through a boreal-type plant community that survived the post-glacial era. It is home to unique flora like the white cedar, sundew, and various rare orchids. The bog's groundwater is mineral-rich and maintains a constant cold temperature, supporting distinct species typically found in much northern latitudes. It serves as a critical habitat for the federally endangered spotted turtle and the elusive massasauga rattlesnake. The preserve includes an educational center with exhibits detailing the geological history and biodiversity of the region.
The mid-point of the boardwalk where the white cedar canopy opens to reveal the fen's unique water channels.
Stay strictly on the boardwalk to avoid damaging the delicate, spongy fen vegetation.
Bring binoculars as the dense foliage often hides the diverse bird and reptile populations.
Wear insect repellent, as the wetland environment creates prime conditions for mosquitoes and ticks.
Stepping off the boardwalk into the mucky soil, which can be dangerous and harmful to the ecosystem.
Closed on Mondays and Tuesdays; occasionally closes for special research events or severe weather conditions.
Stay on the boardwalk at all times; no pets allowed; strictly pack-in-pack-out waste policy.
