The Geology of Watkins Glen State Park is part of a series presenting state park geology in a set of booklets designed for the average park visitor interested in the geological aspects of the scenery. Although the booklet contains some technical content, the average visitor would find the booklet interesting, particularly if they are earth science enthusiasts. Chapter 1 provides an overview of the geology of Western and Central New York as an introduction to the regions background geology. Chapter 2 offers a summary of the regional geomorphology (landscapes and its origin). Chapter 3 provides the technical details of the physical stratigraphy of the Genesee Formation in Western and Central New York. The chapter addresses rocks occurring above and below the Genesee Formation along with the members included in the formation. Depositional environments are also discussed. Chapter 4 focuses on Watkins Glen State Park's geology, discussing the park and the technical details on the rocks that compose the Bouma sequences.