Heritage Geology Sites

Locations of PNHP sites (red stars) in Pennsylvania. Triangles indicate sites under review for inclusion.

There are 101 sites in the PNHP database. Ultimately, many of the 514 features described in two published volumes, Outstanding Scenic Geologic Features of Pennsylvania, Environmental Geology (EG) Report 7 (out of print) and EG Report 7, Part 2, will be included in the PNHP list. Part 1 is out of print but may be seen in libraries. To obtain a copy of EG Report 7, Part 2, go to our list of Environmental Geology Publications for cost and ordering instructions. To find the nearest repository library, please see our list of Repository Libraries.

Two of the 101 sites are now considered "extinct." The Port Kennedy Bone Cave in Montgomery County was filled in many years ago, and the Swatara Gap fossil site was covered over in the process of bridge construction.

Click on the images below for a listing of the sites by category.

Erosional Remnants	Fossils	Glacial Features	Landforms	Lithology

Mineral	Scenic Views	Springs	Structure	Waterfalls

Below are a few sites that are described in more detail:

• Hyner View State Park, Clinton County
• Boiling Springs, Cumberland County
• White Rocks, Cumberland County
• Cucumber Falls, Ohiopyle State Park, Fayette County
• Ohiopyle Falls, Ohiopyle State Park, Fayette County
• Archbald Pothole, Lackawanna County
• Whaleback, Northumberland County
• Dinosaur Rock, Lebanon County

In addition, visit specific physiographic sections at our Landforms page for further information on scenic and heritage geologic features in Pennsylvania.