Static Map ImagesBLM REA Boundaries and Acres in Alaska (PDF Map)
PDF map showing the boundaries and number of acres in each Rapid Ecoregional Assessment (REA) in Alaska, plus the total acres of all REAs in Alaska.
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 NOS 2012 Active Mine Sites in the North Slope study area
Metadata Thumbnail This data depicts the locations of active mines, prospects, and mineral occurrences on the North Slope. The original statewide data was the Alaska Resource Data File (ARDF), which was a subset of the National Mineral Resource Data System (MRDS) that has b...
Downloadable DataBLM REA NOS 2012 Aerial survey of cliff-nesting raptors in the National Petroleum Reserve – Alaska, 1999, with comparisons to 1977
Metadata Thumbnail The Alaska Gap Analysis Project distribution models for raptors were of generally of poor quality, as cliff nesting features were not mapped well in the land cover base maps used to generate the distribution models. Therefore, an alternate method of mappi...
Downloadable DataBLM REA NOS 2012 Alaska Freshwater Fish Inventory in North Slope
Metadata Thumbnail Alaska's abundant, remote, and predominantly pristine freshwater fish habitats are largely unexplored and undocumented. To begin filling these vast information gaps, the Alaska Freshwater Fish Inventory Database (AFFID) houses freshwater fish (anadromous ...
Downloadable DataBLM REA NOS 2012 Alaska Gap Analysis Project Raptor Occurrences in the North Slope study area
Metadata Thumbnail The Alaska Gap Analysis Project distribution models for raptors were of generally of poor quality, as cliff nesting features were not mapped well in the land cover base maps used to generate the distribution models. Therefore, an alternate method of mappi...
Downloadable DataBLM REA NOS 2012 Alaska Resource Data File GoldPlacer
Metadata Thumbnail Database of descriptions of mines, prospects, and mineral occurrences in Alaska.
Downloadable DataBLM REA NOS 2012 Alaska Resource Data File HardRock
Metadata Thumbnail Database of descriptions of mines, prospects, and mineral occurrences in Alaska.
Downloadable DataBLM REA NOS 2012 Annual Kernel Density of Central Arctic Herd from 2004 to 2014
Metadata Thumbnail Some of the NOS rasters intentionally do not align or have the same extent. These rasters were not snapped to a common raster per the authors' discretion. Please review selected rasters prior to use. These varying alignments are a result of the use of dif...