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.

To produce the digital map, we used existing 0.3-m-pixel imagery (color, color infrared, and panchromatic) acquired in 2003. This imagery did not cover the entire project area completely; therefore, we filled in the missing area with a 1998 U.S. Geological Survey 1-m-pixel, digital orthophoto quadrangle map. These images, in addition to ground-truthing, were used to interpret patterns of vegetation and land use. All of the interpreted and remotely sensed data were converted to geodatabases using ARCGIS© software. Draft maps were printed, fi eld-verified, reviewed, and revised as necessary. Due to the small size of AZRU, each point collected was revisited, resulting in a 100%-accuracy assessment of the evaluated area.