The Au Gres Delta Nature Preserve is located in the City of Au Gres, Michigan. Almost the entire preserve is made up of wetlands designated under the National Wetlands Inventory. The Preserve includes shoreline on the west shore of the Saginaw Bay of Lake Huron, and is adjacent to the Au Gres river. The Au Gres Delta nature Preserve is unimproved and is undergoing a large-scale Lake Plain Prairie restoration. The preserve is a sanctuary for nature and is being carefully monitored as invasive species are restored. Please be respectful of the sensitivity species and delicate botanical nature balance. We are working to restore by leaving no trace of your visit.