(FAIRHAVEN TOWNSHIP) -- A wildfire has burned roughly one-third of an uninhabited island in Saginaw Bay. Reports say the fire burned Tuesday and Wednesday at Heisterman Island, located a few miles off Huron County's Fairhaven Township. Members of the Fairhaven Township Fire Department couldn't get to the scene, so they monitored the blaze from shore and kept in touch with the state Department of Natural Resources. Rain mostly put out the fire, and the DNR estimates that about 130 acres of the 400-acre island burned. The cause of the blaze wasn't known. The island is used by hunters, anglers and campers.