Oak Openings Region

The Oak Openings Region is a globally rare ecosystem composed of over 1,300 square miles (3,400 km2) of Michigan and Ohio.

The land consists largely of oak savanna and grassland prairie.

It is considered by The Nature Conservancy as having a similar ecological importance as the Florida Everglades and is one of the 200 "Last Great Places on Earth".

[1] Today, the Oak Openings Preserve Metropark is the largest intact piece of mostly dry savanna remaining.

The largest sections of swamp and savanna, are in the hands of citizens [2] Goll Woods State Nature Preserve also protects a small area of Oak Openings.