This is an official Web site of the Pennsylvania Bureau of State Parks. Begin your adventure here. - Ricketts Glen harbors Glens Natural Area, a National Natural Landmark. Take the Falls Trail and explore the Glens which boasts a series of wild, free-flowing waterfalls, each cascading through rock-strewn clefts in this ancient hillside. The 94-foot Ganoga Falls is the highest of 22 named ...