The Conestoga Area Historical Society seeks to preserve and share the history of the Penn Manor Area, Lancaster County, Pennsylvania. To this end, the society operates the circa 1850 Harnish House; an outdoor oven; a local history museum, housed in a 19th-century tobacco barn; and a working blacksmith shop. The Harnish House contains a selection of reproduction furniture, and addresses the life of the Harnish family. Society highlights include a Conestoga wagon and a tobacco stripping display.

The society offers exhibits and demonstrations.