• Indianhead Point stands tall along the Pictured Rocks. Photo copyright Craig Blacklock

    Pictured Rocks

    National Lakeshore Michigan

Personal Watercraft Use Environmental Assessment 2005

Did You Know?

Mineral seepage creates the vibrant colors shown on this close-up photo of the Pictured Rocks cliffs.

Mineral stains give color to the famous cliffs of Pictured Rocks National Lakeshore. Red and orange colors are iron, black is manganese, white is limonite, and green is a trace of copper. There are no pictographs or petroglyphs on the Pictured Rocks cliffs (that we know of). More...