The small ridge in this photo is a sand dune covered in ferns. The Oak Openings region of Ohio is one of the rarest habitat types in the world. It occupies the former shore of Lake Warren, the glacial predecessor to Lake Erie. The unusual and rare flora/fauna of the region have developed on these ancient sand dunes, and along with the wet and dry prairie habitats and swamp forests, make Lucas County the largest concentration of biodiversity in the state of Ohio.
The Battle of Fallen Timbers occurred near this site in a patch of forest that was hit by a tornado. The outcome of the battle paved the way for the Greenville Treaty, and thence, the settlement of Ohio and statehood in 1803.