Grand Marais, MI

ZIP code 49839 serves Gwinn and surrounding parts of Forsyth Township in Marquette County, Michigan’s Upper Peninsula. The community is set amid forested terrain south of Marquette. Notable landmarks include the Gwinn Model Town Historic District, which reflects the town’s planned development by the Cleveland-Cliffs Iron Company, and Gwinn Municipal Airport, a general-aviation facility. The area also contains residential neighborhoods and local civic services.