The Oak Openings Region


Oak Openings RegionCovering more than 130 square mile, the Oak Openings Region in NW Ohio is an exceptionally unique ecosystem. Consisting mostly of savannas of white and black oaks and grassland prairies. It is considered by The Nature Conservancy as having a similar ecological importance as the Florida Everglades.

This extraordinary region was created after the last ice age, after the continental glacier melted away it left behind a sizable body of water named Lake Warren. Eventually, this lake steadily decreased leaving Lake Erie and also a substantial area of land. The region has sustained frequent wildfires in which exclusively oak trees survived. Once pioneers appeared they called the region the “Oak Openings”.




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