The Strawberry Islands are a small chain of four islands located on the Wisconsin side of Green Bay between Chambers Island and Peninsula State Park. The islands are part of the Town of Gibraltar, Wisconsin. The islands were likely occupied for thousands of years by indigenous peoples. Gradually the historic Ojibwe people moved into the area around the Great Lakes, where they competed with the existing Sioux (Lakota). They pushed the Sioux west into the Great Plains, with their last battle occurring in 1745.