Pennsylvania Geology
- Geological Story of PennsylvaniaThis short history from the USGS 4th survey looks at the Pennsylvania area through the geologic periods and how the environment has changed.
- Pennsylvania Geology Digital CollectionScanned books and maps on the geology of Pennsylvania, including publications from the Pennsylvania Geological Survey and the U.S. Geological Survey.
- Pennsylvania Minerals InformationChapter from the USGS Minerals Yearbook.
- County Rock Type Maps of PennsylvaniaPennsylvania has a great diversity of bedrock that is at or near the surface.This page contains a list of county maps detailing each county's rock-types.
Pennsylvania Geological Survey
Pennsylvania Geological Survey Publications
For more information on the Survey, visit our Pennsylvania Geology collection page. An overall history of the Survey was published in 1987 in an issue of Pennsylvania Geology (v.18 no.1).
First Geological Survey
- First annual report, 1836
- Second annual report, 1838
- Third annual report, 1839
- Fourth annual report, 1840
- Fifth annual report, 1841
- Sixth annual report, 1842