Bureau of Topographic and Geologic Survey


Marcellus and other Organic-Rich Shale

Research on the Marcellus, Utica and other organic rich shales.

Hickory Run boulder field

What's New

This section features new information and publications on the bureau's website.


Library Catalog Available Online! 

The Pennsylvania Geological Survey Library is pleased to announce that most of our collection is now available for searching in the State Library of Pennsylvania’s online catalog. Over the past year, thousands of records have been added to this database. The catalog makes searching the library’s holdings easier than ever. Records continue to be added on a daily basis, so if there is a publication you are looking for that is not in the catalog, please contact the Survey Library to determine its availability. 

You can search the catalog by Title, Author, Subject, or Keyword. The online catalog provides a listing of all the resources available in libraries under the State Library of Pennsylvania. To only search the Survey Library’s holdings, you should select “Conservation and Natural Resources Geology” under “Set Single Limit.” This will limit your search results to publications found in the Pennsylvania Geological Survey Library. 

Most books and journals may be checked out of the Survey Library for a loan period of 28 days. To borrow materials from the library, you must visit 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. Some items are not available to check out, for example, most “Maps” can only be viewed in the library. If you are uncertain as to the check-out status of a publication, please contact our librarian at RA-pagslibrary@pa.gov

For more information about the Pennsylvania Geological Survey Library, please visit our library web page.