Pictured Rocks National Lakeshore is designated a Class II area under the Clean Air Act. An assessment based on lichen flora and elemental analysis suggested that air quality in the vicinity is quite good.
Did You Know?
Located within Pictured Rocks National Lakeshore, the Au Sable Light Station is on the National Register of Historic Places. Constructed in 1874, the station beacon still shines over Lake Superior's frigid waters. The lamp is now solar powered. More...