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 materials may be checked out of the library for one month; materials without a circulation card may not be checked out.
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 some of the 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 office at 717-702-2017.