07/28/2026
This is what we are trying to protect!
A mile-plus boardwalk carries you over ground that has not really changed since the last Ice Age. Cedar Bog Nature Preserve in Urbana, Ohio protects about 450 acres of what was once a 7,000 acre wetland, and despite the name it is technically a fen: groundwater from the Mad River Valley flows through it rather than sitting still. That constant cold seep keeps the ground unusually chilly, which is why northern white cedar and bog birch still grow here thousands of years after the glaciers retreated.
The preserve is a National Natural Landmark and holds roughly 40 percent of Ohio's rare species in one place, including the endangered spotted turtle, the massasauga rattlesnake, and Milbert's tortoiseshell butterfly. Wildflower season builds through the year, with skunk cabbage pushing up first, marsh marigolds following, and showy lady's slipper orchids arriving in May. In 1942 it became the first nature preserve in Ohio purchased with state funds, and it remains a quiet, walkable window into the state's deep past. Have you visited Cedar Bog Nature Preserve?
⭐Cedar Bog Nature Preserve
📍 980 Woodburn Road, Urbana, OH 43078