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Official Website

of the Commonwealth of Pennsylvania

    The .gov means its official.

    Local, state, and federal government websites often end in .gov. Commonwealth of Pennsylvania government websites and email systems use "pennsylvania.gov" or "pa.gov" at the end of the address. Before sharing sensitive or personal information, make sure you're on an official state website. 

    Trail of Geology Series

    DCNR’s Bureau of Geological Survey created a series of publications of a sight-seeing nature for the geologic explorer in all of us. The Trail of Geology publications consist of nontechnical booklets and papers describing the geology of selected Pennsylvania parks, trails (land and water), and points of interest. They are organized by Park Guides, Trail Guides, and Outstanding Geologic Features.

    In addition to this list of publications, you can explore the series by map location on PaGEODE. Just turn on the Trail of Geology layer and click on the map symbol of interest.