The geology of the central Susquehanna Valley is varied, complex, and fascinating. It begins with the collision of great tectonic plates, the rise of the Appalachian Mountains, the first appearance of land plants, the great diversification of fishes and other marine life, and so much more. It is a narrative written in the rocks and it still continues to be told. But, how do we know this? How can you stop at an exposure of rock and read its story, as geologists do?

Rock Sleuths is a six-week course for those with or without a science background. It is an introduction to the fundamentals of geology using the rocks of the central Susquehanna Valley. Its goal is to provide participants with the basic tools to be able to look at a body of rock and to have some understanding as to what it is, how it came into existence, and when.

Participants will learn about geologic time, the elements of geologic maps, major rock-forming minerals and rock types, how and where rocks formed, the structure of rock layers, and the processes that shape rock-controlled landforms. They will also learn how all of that knowledge is put together to read the geological history of a region.

Each class will address a specific topic through lecture, PowerPoint presentations, hands-on activities, demonstrations, animations, and discussions. Additionally, each participant will be given their own small rock collection and be invited to take part in an optional Saturday field trip to Shikellamy State Park Overlook, across from Northumberland.

Participants are expected to have computer literacy/access and an email address for communication.