The Conococheague Institute

Museum .. Library .. Gardens .. Gift Shop


...Exploring the clash and integration of cultures on the Conococheague frontier...

Enjoy our site from dawn to dusk daily! We are located at 12995 Bain Road, Mercersburg, PA 17236. Business hours, including the research library and historic house tours, are Monday through Friday, 9 a.m. to 5 p.m., or by appointment. The site is open year-round. Contact us to arrange for group tours or private events at 717-328-3467.


Click below to begin searching our On-Line Catalog, including library materials and museum collections. The On-line Catalog is a work in progress, currently holding 10% of our data. If you don't find what you need in the catalog, please call us at 717-328-3467 for further search options.

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Visit Our Historic Farmstead

Located at Rock Hill Farm in the community of Welsh Run between Mercersburg and Greencastle, Pennsylvania


12995 Bain Rd, Mercersburg, PA



Grounds open daily from dawn to dusk


Buildings open for tours year-round, Mon-Fri 8 AM to 5 PM, or by appointment


Cost of guided tour: $5 per person


Tours last approximately two hours

Touring the site includes walking on uneven ground and maneuvering through 18th and 19th century structures, including stairs


Contact us to arrange group tours


Gift shop with Colonial-style toys and games, local history books, local handcrafts, and other frontier-inspired items. We accept payment by cash, check, Visa, MasterCard or Discovery.

Annual Events

End of Starvation Feast – first Saturday in April, featuring colonial frontier foods. Fee charged, reservations required

Christmas Open House – 2nd Saturday in December
Seminars and Discussion Groups

History Hippies discussion group  - Second Tuesday of every month

Sidetracks of History Book Club – Third Thursday of every month

Private Events
Let Rock HIll Farm provide the landscape for your next outdoor gathering. Our grounds are available for private rentals with fees beginning at $200 per event. Contact us at to request more information about site rentals.

Programs and Events