Cliffs rising 50 to 200 feet above Lake Superior for 15 miles south side are decorated or ‘painted’ with colorful streaks and are part of the Pictured Rock National Lakeshore. The 500 million-year-old sandstone are stained from mineral filled groundwater leaching out of the rock. Minerals like iron, copper, manganese, and limonite create the red, orange, yellow, blue, green, brown, black, and white colors.
Pictured Rocks
