Geology Rocks! 2025 Geology Program

Geology: Your Backyard Geology

Presented in partnership with the Franklin Co. Rock & Mineral Club. Geologist Jeri Jones Jeri Jones of Jones Geological Services in Spring Grove, Pa. returns to present another fun, fascinating look into our shared geological history.

Location: Church of the Apostles, 336 Barnett Avenue in Waynesboro, Pa.

Admission is free and all are welcome.

Fun and education combine in Jeri Jones’s popular annual geology series. Jones will focus on locations showcasing the best geology in the area, with fascinating stories about our geologic history.

The program highlights the types of rocks found in the local region, and will include mineral resources, geologic hazards and some of the new geologic discoveries in the area.

“Waynesboro is positioned within the Great Valley Section known for its limestone,” Jones said. “To the west are the world-famous Appalachian Mountains and to the east is South Mountain, which contains some of the oldest rocks in the entire state.” All three areas contain a different chapter of the areas’s geologic history. 

“South Mountain is also the northern extension of the Blue Ridge Mountains of Virginia and North Carolina,” Jones said. “Participants will learn how recent research in South Mountain has developed new thoughts on its rocks and origins.

Audience questions are welcome. 

Information in the program also serves to enhance the geology bus trip on May 3.

Find information on the bus trip here.

A geologist for more than 45 years, Jones has conducted extensive research on Pennsylvania mining practices, authored several publications, and narrated a 3-part video series on regional geology known as “TimeWalk.” He has been on the faculties of several regional colleges.

This program is presented by Buttonwood Nature Center in partnership with the Franklin County Rock and Mineral Club, and underwritten in part by Marge Kiersz, Lucinda D. Potter, CPA, and SEK CPAs & Advisors.

Additional support provided by Today’s Horizon Fund contributors: The Nora Roberts Foundation; Alma W. Oyer; APX Enclosures; Don Gibe and Nancy Erlanson; and the family of the late Carolyn Terry Eddy, with daughters Connie Fleagle & Kim Larkin.