Located within Pictured Rocks National Lakeshore, Au Sable Light stands on Au Sable Point, a well known hazard on Lake Superior's "shipwreck coast". The Au Sable Point reef is a shallow ridge of sandstone only 6 feet below the surface and extending nearly a mile into Lake Superior. The Au Sable Point reef was one of the greatest dangers facing ships coasting along the south shore of Lake Superior during the early shipping days when keeping land in sight was the main navigational method. The Au Sable Point reef was known as a "ship trap" that ensnared many ships. It is a 1.5 mile walk (one way) to the lighthouse on a very nice access road used by staff. Because the Lakeshore is administered by the National Park Service, this was the one Michigan lighthouse where I could not use the drone.