Pennsylvania Geological Survey Library
A U.S. Geological Survey ESIC (Earth Sciences Information Center) library
The library is located at the main office of the Pennsylvania Geological Survey at 3240 Schoolhouse Road in Middletown. Click here for directions.
The library is open to the public Monday through Friday from 9 a.m. until 12 p.m. and from 1 p.m. until 4 p.m. Please use the appointment calendar to schedule your visit.
The Pennsylvania Geological Survey library houses a large collection of topographic maps, historical and recent aerial photographs, and geologic texts, maps, and journals. Most books and journals may be checked out of the library for 28 days. To borrow materials, you must visit the library in person and provide identification with a permanent address (e.g., a driver’s license). If you are not able to visit the library in person, you can contact your local library to arrange for an interlibrary loan.
Included in the library collection are all the publications of the First, Second, Third, and Fourth Pennsylvania Geological Surveys. Many of the reports from the Fourth Survey are also available from local repository libraries, and the majority of reports are available online. See our publications page for additional information.
Questions on library services and operations may be directed to RAemail@example.com, or call the Survey library at 717-702-2020.