Who among us has not sometimes gazed upon the cloud-capped mountains of Pennsylvania and wondered what secrets lie hidden in their dark hollows and along their rushing glens? Who has hiked their sylvan pathways and not been captivated by the soothing sounds of the forest or enchanted by its hypnotic mists and shadows? In this, the third volume in the Pennsylvania Mountain Landmarks series, the author, as in the previous two volumes of the series, takes the reader along on an armchair journey to discover, and get a sense of actually being at, some of the most captivating and mysterious places that can be found in Pennsylvania's highlands. Places like this described herein include Highpoint Rock, Panther Rocks, Hexenkopf or "Witch's Head" Rock, Rattlesnake Rock, and the prehistoric Bilger's Rocks. Photos of these and of many other sites described in this volume are included to enhance the reader's armchair experience. And, as in the previous volumes, any historical accounts and human interest stories associated with the locations are also mentioned in order to give the reader a greater appreciation for them, and for the mysteries they hold. In this volume: High Point Rock (Somerset County) Rothrock's Rock (Franklin County) General Benner's Rock (Centre County) Hexenkopf Rock (Northampton County) Castles in the Air (Centre et al.) Panther Rocks (Clearfield County) Bigler's Rocks (Clearfield County) The Old Improvement (Centre County) Satan's Handiwork (Lycoming et al.) Mysteries in Stone (Clinton et al.) Pennsylvania's Grand Canyon (Tioga/Lycoming) Rattlesnake Rock (Lycoming County)