In coordination with the Potomac Appalachian Trail Club. Tom Johnson of the Potomac Appalachian Trail Club will talk about how in the 1920s, the mountains south of the Potomac River invited hikers to explore. Led by the dynamic Myron Avery of Washington, D.C., a small group of enthusiasts created the Appalachian Trail in just a few years. During this presentation you will “meet” this remarkable group and follow them as they lay out a new trail in the South. Begins at 3:00 pm.

In coordination with the Preservation Society of Historic Gettysburg-Adams County (HGAC). Over the past fifteen years, HGAC has added more than 300 barns to the Adams County Barn Registry as a primary component of its Barn Preservation Project. HGAC Barn Preservation Specialist David Maclay will talk about various facets of barn preservation for both novice and seasoned surveyors alike. Following the presentations, participants will venture into the field, fanning out into the countryside to document local barns in a hands-on, fun-filled exploration into the rich diversity of Adams County’s agricultural and architectural legacy. Participation is free of charge and includes breakfast, but advance registration is required by March 20 by contacting David Maclay at 717-677-4000 or dmaclay@mac.com. Begins at 8:30 am.

In conjunction with the Friends of Pine Grove Furnace. Andre Weltman, chairman of the Friends of Pine Grove Furnace State Park, will discuss the connection between the 19th century charcoal iron industry and today’s South Mountain landscape. Modern trails and campsites often overlap with still-visible remnants of an important part of iron making: transforming the forests into charcoal fuel for the region’s iron furnaces. Begins at 7:00 pm.

In conjunction with Messiah College. Join Messiah's Director of Sustainability, Brandon Hoover, as he discusses the importance of pollinators, the local honey industry, and the role Messiah is taking to promote pollinators. Begins at 6:00 pm.

In conjunction with Shippensburg University. Dr. Alison Feeney, professor of geography and earth science at Shippensburg University, released a new book in 2018, For the Love of Beer. The book examines Pennsylvania's brewing history, geography and cultural richness while highlighting more than 100 of the state's thriving craft breweries. Come learn firsthand from Dr. Feeney about what makes PA, including the South Mountain region, so great for the craft brewing industry. Begins at 6:30 pm.

In conjunction with DCNR and Keep PA Beautiful. Discover ways to fight illegal dumping and vandalism in a forest setting with a joint presentation by Michaux State Forest Ranger Todd Ottinger and Keep Pennsylvania Beautiful Program Coordinator Rob Dubas. Technical, social, cultural and financial aspects of the problem will be explored. Begins at 6:30 pm in the conference room of Caledonia State Park's park office (101 Pine Grove Road, Fayetteville).