Jeri Jones will lead the annual geology walk at the Haldeman Mansion on Saturday, Aug. 26, at 10 a.m. The mansion is located at 230 Locust Grove Road, Bainbridge. No preregistration is required, although attendees are encouraged to arrive early to the event so they have time to register and visit the coffee shop.

To learn more, call Elaine Jackson at 717-426-3794.