Through the course of time, the main industry of Mackinaw City became almost strictly tourist-oriented, with other major sources of employment being civic services such as mail, police, firefighting, schooling, and so on. Camping, which began in Michilimackinac State Park in 1907, was halted in 1971 as a Maritime Park was opened in 1972 around the lighthouse. This park was shut down in 1990, but Old Mackinac Point Lighthouse was opened to the public in 2004. Mill Creek State Park, which includes the area believed to be where Mill Creek's sawmill once flourished when Mackinac Island was being settled, is located about five miles (8 km) southeast of the village along U.S. Highway 23 (US 23).