Static Map ImagesBLM REA Boundaries and Acres in Lower 48 States (PDF Map)
PDF map showing the boundaries and number of acres in each Rapid Ecoregional Assessment (REA), plus the total acres of all REAs.
Static Map ImagesBLM REA Boundaries and Release Status Map (PDF Map)
PDF map showing the boundaries and release status for each Rapid Ecoregional Assessment (REA), as depicted on the REA home page on the Landscape Approach Data Portal. This map will be updated when a new REA is released, but this metadata record will not d...
Downloadable DataBLM REA CHD 2012 Scrub Cons el add2 10a VegDistScrub
Metadata Thumbnail This polygon feature class represents the distribution of Chihuahuan Desert Scrub ("scrub") for a niche modeling effort. This feature class was derived from Ecological Systems (ECOLSYS_LU) from the National GAP Land Cover Dataset. Random points were selec...
Downloadable DataBLM REA CHD 2012 Adjacent Ecoregions
Metadata Thumbnail Ecological regions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems...
Downloadable DataBLM REA CHD 2012 Administrative District Boundary
Metadata Thumbnail This feature class represents the polygon features for active BLM Administrative Unit Boundaries at the District levels. The Administrative Unit Polygon feature class was dissolved and saved as four separate feature classes, one for each administrative un...
Downloadable DataBLM REA CHD 2012 Administrative Field Boundary
Metadata Thumbnail This feature class represents the polygon features for active BLM Administrative Unit Boundaries at the Field levels. The Administrative Unit Polygon feature class was dissolved and saved as four separate feature classes, one for each administrative unit ...
Downloadable DataBLM REA CHD 2012 Amphibian Assemblage distribution
Metadata Thumbnail This raster represents the current distribution of the Amphibian assemblage in the CHD REA Analysis Extent. Distribution is estimated using a combination of Southwest ReGAP Vertebrate Distribution Models and National Gap Species Distribution Models. Speci...
Downloadable DataBLM REA CHD 2012 and USFS Grazing Allotment raster
Metadata Thumbnail This raster represents the extent of all Bureau of Land Management and U.S. Forest Service grazing alloments in the CHD REA Analysis Extent. Refer to the data provided by the respective agencies for further information.
ModelsBLM REA CHD 2012 Aquatic Models Package
Esri 10.4 geoprocessing models and documentation relating to the Conservation Elements: Aquatic Toolbox within the BLM 2012 Chihuahuan Desert (CHD) Rapid Ecoregional Assessment (REA). This model package contains 7 models. The contents of this downloadable...
ModelsBLM REA CHD 2012 Attribute Indicators Models Package
Esri 10.4 geoprocessing models and documentation relating to the Attribute Indicators Toolbox within the BLM 2012 Chihuahuan Desert (CHD) Rapid Ecoregional Assessment (REA). This model package contains 4 models. The contents of this downloadable zip file ...