The files linked to this reference are the geospatial data created as part of the completion of the baseline vegetation inventory project for the NPS park unit. Current format is ArcGIS file geodatabase but older formats may exist as shapefiles.

Upon completion of the formation-level classification, CEO staff created a draft association-level vegetation map using a classification scheme based on The Nature Conservancy’s Terrestrial Vegetation of the United States and association-level classes developed by PSO-TNC. Copies of the Valley Forge National Historical Park data in PLOTS database (MS ACCESS) format and the PC-ORD formatted data (MS EXCEL spreadsheet) were provided to NatureServe and The Nature Conservancy. A draft vegetation classification was provided to CEO photointerpreters by the end of January 2001. The draft classification was accompanied by an ARCVIEW shapefile indicating the location and plot number of each sample plot, as well as the vegetation association to which that plot was classified. CEO photointerpreters used the draft classification and related ARCVIEW shapefile to help inform the attribution of associations to the association-level map polygons.