American bison
In early 2008, site cleanup was finished three years ahead of schedule, while groundwater monitoring remains ongoing. Part of the prairie restoration at Midewin includes introducing American bison to graze on an experimental basis on approximately 1,200 acres of fenced pasture located within the Prairie’s 19,000 total acres. In October 2015, the U.S. Forest Service announced the arrival of 27 American bison to the prairie.