Philander Chase Knox Estate
Valley Forge NHP
Open All Year by Appointment
Yellow Springs Road
All Federal Holidays and Weekends
The Philander Chase Knox Estate currently houses the Horace Wilcox Library, a research library open to the public by appointment. The collection's emphasis is on the Revolutionary War era, in particular the Valley Forge encampment of 1777-1788. Materials on the political, social and industrial history of the Valley Forge area are also available.
Did You Know?
Port Kennedy Cave, located in what is now Valley Forge NHP, produced one of the most significant assemblages of Pleistocene fossils in North America. 14 plants and 48 animals are represented, including wolverine, Wheatley's ground sloth, long-nosed peccary, Hay's tapir, and lesser short-faced bear. More...