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.

Identification and delineation of map polygons was fairly simple for most of the Hopewell Furnace NHS. One issue that arose was the relative inaccuracy of the available GIS park boundary files. Several boundary files available from the park or archived at North Carolina State University were in error by 10 to 25 m when overlaid on the digital ortho-photo mosaic. The boundary was later verified by Pennsylvania Science Office staff, who collected GPS coordinates for park boundary monuments. The resulting boundary (when GPS data was converted to a shapefile) was in close agreement with features observed in the photo mosaic (e.g. boundary roads, trails, hedgerows along property lines, etc.) and is considered the best representation of the park boundary for this mapping effort.