Put on your hiking boots and get set to explore Pennsylvania's incomparable world of dazzling boulders, balanced rocks, perched rocks, painted rocks, rock profiles, towering bluffs, commercial caves, talus caves, rock-shelters, glacial potholes, and historic rock formations.Pennsylvania Mania is the go-to book that offers you the opportunity to hike to and explore the Keystone State's amazing boulders and rock formations; to discover that there is more to Pennsylvania than just its phenomenal waterfalls and mountain summits.