PASDA, "Pennsylvania's official public access geospatial information clearinghouse", includes access to data as well as to map images and interactive maps

The PAMAP program was a collaboration among state agencies to produce a collection of statewide high resolution digital orthoimagery and lidar elevation data.

Create maps that show administrative and political boundaries, geological and geophysical information, transportation networks, and more

The Atlas of Historical County Boundaries is a powerful historical research and reference tool in electronic form. The Atlas presents in maps and text complete data about the creation and all subsequent changes (dated to the day) in the size, shape, and location of every county in the fifty United States and the District of Columbia.

Interactive maps designed for anglers and boaters by the Pennsylvania Fish & Boat Commission

Links to the Risk Assessment, Mapping, and Planning Partners (RAMPP) Risk MAP Watershed Projects maps

The PA Flood Risk Tool is designed to provide floodplain managers, insurance agents, developers, real estate agents, local planners and citizens with an effective means by which to make informed decisions about the degree of flood risk for a specific area or property.

Tourism and Transportation Maps; County Maps; Township, Borough, and City Maps; Traffic Volume Maps; and general Pennsylvania Maps

Maps from the early 1900s to early 2000s from the Pennsylvania Department of Transportation.

Explore geologic data and search for publications on your computer screen, download data and publications of interest, or add data directly to ArcMap or Google Earth

Explore the maps and learn about the many ways that the Pennsylvania Natural Heritage Program is working to protect biodiversity.

Use these interactive map tools to find Pennsylvania recreation, conservation, grant, economic resources, and geological information.

Lists of scanned Pennsylvania maps