Pismire Island is a small island in Lake Michigan of approximately 2.5 acres in size. It is part of the Beaver Island archipelago, the Michigan Islands National Wildlife Refuge, and the Michigan Islands Wilderness Area. It is managed by the U.S. Fish and Wildlife Service as a satellite of the Seney National Wildlife Refuge. It is located in St. James Townsh…Pismire Island is a small island in Lake Michigan of approximately 2.5 acres in size. It is part of the Beaver Island archipelago, the Michigan Islands National Wildlife Refuge, and the Michigan Islands Wilderness Area. It is managed by the U.S. Fish and Wildlife Service as a satellite of the Seney National Wildlife Refuge. It is located in St. James Township, Charlevoix County, Michigan.