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 Ecoregion and Analysis Boundaries
The ecoregion and analysis boundaries of the BLM REAs: Colorado Plateau (COP), Sonoran Desert (SOD), Central Basin and Range (CBR), Chihuahuan Desert (CHD), Madrean Archipelago (MAR), Mojave Basin and Range (MBR), Middle Rockies (MIR), Northern Great Bas...
Downloadable DataBLM REA SGP 2012 - Terrestrial Development Index for All Development 2.5 km
Metadata Thumbnail Terrestrial development index (TDI) for all development (agricultural, urban, roads, railroads, energy, and minerals) for the Southern Great Plains REA project area. TDI scores represent the percentage of the surface disturbance footprint from development...
Downloadable DataBLM REA SGP 2012 ADI - HUC12 Baseline
Metadata Thumbnail Mean aquatic development index(ADI), local ADI, and upstream ADI, summarized by sixth-level watershed (HUC12), in the Southern Great Plains REA project area. ADI is a relative score ranging from 0-100 of combined terrestrial development (areas of agricult...
Downloadable DataBLM REA SGP 2012 ADI - HUC12 Baseline
Metadata Thumbnail Mean aquatic development index(ADI), local ADI, and upstream ADI, summarized by sixth-level watershed (HUC12), in the Southern Great Plains REA project area. ADI is a relative score ranging from 0-100 of combined terrestrial development (areas of agricult...
Downloadable DataBLM REA SGP 2012 ADI - Local ADI Raster SGP
Metadata Thumbnail Local aquatic development index raster (30-meter grid) for the Southern Great Plains REA project area.
Downloadable DataBLM REA SGP 2012 ADI - Upstream ADI Raster SGP
Metadata Thumbnail Upstream aquatic development index raster (30-meter grid) for the Southern Great Plains REA project area.
Downloadable DataBLM REA SGP 2012 ADI Final Catchments Ch03 Fig05a
Metadata Thumbnail Aquatic development index(ADI) by catchment in the Southern Great Plains REA project area. ADI is a relative score ranging from 0-100 of combined terrestrial development (areas of agriculture, urban, transportation, and energy and minerals) and aquatic de...
Downloadable DataBLM REA SGP 2012 ADI Final Catchments Ch03 Fig07a
Metadata Thumbnail Catchment polygons for the Southern Great Plains REA project area that are larger than 3600 m2 attributed with original count or area of development variables, density of development variables, ranks of development variables, and aquatic development index...