Pennsylvania

History and Social Studies

Featured Geography/Mapping

Johnstown Inclined Plane

Ride the world's steepest vehicular inclined plane! The Incline serves as an outdoor classroom for students studying our area's industrial steel history, the physics of an inclined plane, and even the vegetation on our hillside trail. 711 Edgehill Dr., Johnstown PA 15905. Tel: 814-536-1816. Grade Level: All grades. Cost: Fee.... More Info