Gull Island, located in St. James Township, Charlevoix County, Michigan, is the largest of approximately one dozen islands bearing this name in Michigan. 230 acres (0.9 km²) in size, it is managed by the U.S. Fish and Wildlife Service as part of the Michigan Islands National Wildlife Refuge. The refuge was created in 1943. Gull Island, like the other Lake Michigan islands within the Michigan Islands NWR, is managed as a satellite refuge of the Seney National Wildlife Refuge.