An article by September 16, 2011on
This photo was taken from a boat at Pictured Rock Lakeshore in Munising Michigan. While the scale is hard to tell from this shot, the cliff itself was over a hundred feet tall. The colors are made when the water leaches the different minerals found throughout the rock face. Over time the minerals are washed down, usually in streaks. Occasionally the softer limestone will collapse and take away the outer layers, leaving a fresh wall to be repainted.