Inventory and Monitoring at Valley Forge National Historical Park

Two-story historic stone house with white trim, surrounded by grass and some trees
General Washington's headquarters during the 1777-1778 Valley Forge Encampment.

NPS

Environmental Setting

Valley Forge National Historical Park is located in Valley Forge, Pennsylvania on the Coastal Plain/Piedmont Uplands 20 km (12 miles) northwest of Philadelphia, PA. Covering a total of 1,403 ha (3,466 acres), the park preserves cultural and natural resources associated with the winter encampment of General George Washington and the Continental Army.

The park contains a variety of important wetland, forest and grassland habitats, and is home to 28 species that are state-listed as endangered, threatened, or rare, including plants, animal, fish, reptile, and crustacean taxa.

Key Resources and Issues

The park currently faces numerous threats to its natural and cultural resources. Increased urbanization and population growth can have adverse effects on land cover, air and water quality, and further fragment already limited habitat. Additionally, an overabundance of deer has adversely effected forest regeneration and contributed to an increased spread of invasive exotic species that impact biological diversity and degrade park habitats.

In addition to the natural resource management activities being performed by park staff, scientists of the Mid-Atlantic Network Inventory and Monitoring Program have instituted several monitoring protocols to monitor the status and trends of natural resources at Valley Forge NHP.

Last updated: August 27, 2018