3240 Schoolhouse Road, Middletown, PA 17057 717.702.2017 Phone, 717.702.2065 FAX Directions to the new office Providing geologic and topographic information since 1836. Photo Gallery and Captions Digital Geospatial Data Education & Geoscience Economic Resources Geologic Hazards Geologic Society Information Groundwater Library Maps and Aerial Photographs Collecting - Rocks and Minerals Places to ...