Click here for a quick video of the ringing rocks. In June of 1890, Dr. JJ Ott went out to a sprawling, natural quarry field in northern Bucks County, PA to collect a bunch of rocks.

There are one hundred and twenty state parks in Pennsylvania -- all with their own unique stories. Some were created to save historical landmarks, others to preserve the vast forests for which the state inherits its name (Sylvania meaning woods or forest land), while others were to be used for industry and outdoor recreational areas for the public. The latter is the reason for Codorus State Park near Hanover in York County.