These data were converted from the originally delivered Microsoft Access PLOTs database from the Vegetation Mapping Inventory Project of Hovenweep National Monument. These comma-delimited data tables contain(s) vegetation mapping plot classification and accuracy assessment data, as well as summary information about the data itself. If a table is empty, then it was empty in the original database.

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. The mapping component of the HOVE project used a combination of methods to interpret and delineate vegetation polygons. Before going into the field, a trained photointerpreter visually examined the aerial photographs in stereo to identify distinct polygons. Polygons were drawn on photocopies of these photographs. These were carried into the field and during the reconnaissance/sampling phase, polygons were attributed with vegetation or land use map classes and the boundaries modified as needed. After field work was complete, the field photos were digitized using vector editing in ArcGIS. Each vegetation and land use polygon so produced was given density, pattern, and other descriptive attributes. Copies of electronic plot and observation point data and plot photographs were available to the project lead ecologist for reference during final development of the map classes and polygons.

This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here. Vegetation and land use were interpreted to the most detailed level possible using high-resolution, 1:12,000-scale color aerial photography that had been digitally scanned and orthorectified. Most of the interpretation was based on site visit information, because virtually every part of the Monument is accessible on foot. Polygons representing vegetation or land use map classes were delineated on the stereo photographs and transferred to a spatial database. Because the individual Monument parcels are so small, the standard minimum mapping unit of 0.5 ha was discarded and polygons were delineated to approximately 0.1 ha (0.3 acres).

These data were converted from the originally delivered Microsoft Access PLOTs database from the Vegetation Mapping Inventory Project of Weir Farm National Historical Park. These comma-delimited data tables contain(s) vegetation mapping plot classification and accuracy assessment data, as well as summary information about the data itself. If a table is empty, then it was empty in the original database.

These data were converted from the originally delivered Microsoft Access PLOTs database from the Vegetation Mapping Inventory Project of Weir Farm National Historical Park. These comma-delimited data tables contain(s) vegetation mapping plot classification and accuracy assessment data, as well as summary information about the data itself. If a table is empty, then it was empty in the original database.

These data were converted from the originally delivered Microsoft Access PLOTs database from the Vegetation Mapping Inventory Project of Bandelier National Monument. These comma-delimited data tables contain(s) vegetation mapping plot classification and accuracy assessment data, as well as summary information about the data itself. If a table is empty, then it was empty in the original database.

These data were converted from the originally delivered Microsoft Access PLOTs database from the Vegetation Mapping Inventory Project of Bandelier National Monument. These comma-delimited data tables contain(s) vegetation mapping plot classification and accuracy assessment data, as well as summary information about the data itself. If a table is empty, then it was empty in the original database.

These data were converted from the originally delivered Microsoft Access PLOTs database from the Vegetation Mapping Inventory Project of Theodore Roosevelt National Park. These comma-delimited data tables contain(s) vegetation mapping plot classification and accuracy assessment data, as well as summary information about the data itself. If a table is empty, then it was empty in the original database.

These data were converted from the originally delivered Microsoft Access PLOTs database from the Vegetation Mapping Inventory Project of Theodore Roosevelt National Park. These comma-delimited data tables contain(s) vegetation mapping plot classification and accuracy assessment data, as well as summary information about the data itself. If a table is empty, then it was empty in the original database.

These data were converted from the originally delivered Microsoft Access PLOTs database from the Vegetation Mapping Inventory Project of Booker T. Washington National Monument. These comma-delimited data tables contain(s) vegetation mapping plot classification and accuracy assessment data, as well as summary information about the data itself. If a table is empty, then it was empty in the original database.