Au Sable Light is an active lighthouse in the Pictured Rocks National Lakeshore west of Grand Marais, Michigan off H-58. Until 1910, this aid to navigation was called "Big Sable Light".

Pictured Rocks National Lakeshore is a U.S. National Lakeshore in the Upper Peninsula of Michigan, United States. It extends for 42 mi (68 km) along the shore of Lake Superior and covers 73,236 acres. The park has extensive views of the hilly shoreline between Munising and Grand Marais in Alger County, with picturesque rock formations, waterfalls, and sand dunes.