A friend sent me this picture of some unusual rock formations. These odd piles of rocks can be found on a river in Kingman, Maine during extreme low water conditions. The erratic rock piles are approximately 2 feet wide at the base and 1-1/2 feet tall and constructed of round stones all around the same size. In a discussion with a local biologist studying local flora and fauna, it was determined they were not made by animals but most likely created by humans.
A web search lead me to a few articles that discuss strange rock formations. However the mystery still remains. Anyone care to propose an additional theory or to hazard a guess?