Lake Michigan waves have tumbled and smoothed colorful pebbles into rounded shapes at Pictured Rocks National Lakeshore on the Upper Peninsula of Michigan, USA.

Lake Michigan waves have tumbled and smoothed colorful pebbles into rounded shapes at Pictured Rocks National Lakeshore on the Upper Peninsula of Michigan, USA. The scenic park includes the hilly shoreline between Munising and Grand Marais, Michigan. Published in "Light Travel: Photography on the Go" by Tom Dempsey 2009, 2010.