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The dataset represents the work of multiple states and Federal agencies as part of the US Gap Analysis and LandFire programs. Multi-season satellite imagery (Landsat ETM+) from 1999-2001 were used in conjunction with digital elevation model (DEM) derived datasets (e.g. elevation, landform) to model natural and semi-natural vegetation. The minimum mapping unit for this dataset is approximately 1 acre. Landcover classes are drawn from NatureServe's Ecological System concept. Five-hundred and fourty-four land cover classes composed of 12 cultural and 532 Natural/Semi-natural types are described. Land cover classes were mapped with a variety of techniques including decision tree classifiers, terrian modeling, inductive...
This dataset presents the current potential distribution of flannelmouth sucker in the context of current and near-term aquatic intactness, and long-term potential for climate change at the watershed (HUC5) scale. Current aquatic intactness is based on current measures of landscape development, water quality, hydrologic impacts, and road impacts. Near-term intactness includes estimates of urban growth. Long-term potential for climate change is based on absolute changes in runoff, precipitation, temperature, and vegetation change estimated using climate projections (RegCM3 regional climate model based on ECHAM5 boundary conditions) and a biogeography model (MAPSS) for the period 2045-2060. The aquatic intactness...
Climate data (Average Annual Total Precipitation for 1968-1999) were created by PRISM (Parameter-elevation Regressions on Indepenent Slopes Model - prism.oregonstate.edu) on a 2.5 arc-minute lat-lon grid. They are based on historical observations from 1968-1999. We created mean monthly climatologies for that period from the PRISM data, and reprojected the results to the BLM Albers 4km grid. We used these results as a historical baseline climate to de-bias RegCM3 projections. We also compiled annual and seasonal summaries of precipitation and temperature from the PRISM data to allow for simple comparisons with other climatologies. Units are millimeters.
GrSageGrouseProductionArea is an ESRI SDE Feature Class showing those areas that would include the majority of important sage grouse nesting habitat. Mapped as a buffer zone of 4 miles around Active lek points from GrSageGrouseLeks and clipped to GrSageGrouseOverallRange. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35). Dataset was acquired from a third party distributor who obtained it...
This dataset was digitized by CBI to express the outer boundary of Flannelmouth sucker observations. It was used to clip NHD flowlines to segments that fall within the areas indicated by observation points for this species, to prevent inclusion of large stream and river segments that are not supported by observation data. This dataset should be used for estimation purposes only; it is NOT intended to indicate the range and distribution of this species - only the outer range indicated by available data.
This open-file report presents the results of the USGS Mineral Resources Program activity to compile a national-scale geologic map database to support national and regional level projects, including mineral resource and geo- environmental assessments. The only comprehensive sources of regional- and national-scale geologic maps are state geologic maps with scales ranging from 1:100,000 to 1:1,000,000. Digital versions of these state maps form the core of what is presented here. Because no adequate geologic map exists for the state of Alaska, it is being compiled in regional blocks that also form part of this national database. It is expected that this series will completed by approximately the end of 2007. These...
This dataset contains a set of the polygons for Bureau of Land Managment Field Offices on the Colorado Plateau. This geodatabase consists of a feature class and related data tables creating an inventory of mechanical, herbicide, handthinning, prescribed fire, and other treatments applied to Pinyon-Juniper woodlands on Bureau of Land Management (BLM) and adjacent lands on the Colorado Plateau. Treatment data came from BLM Range Management files. Boundaries were delineated on the most current set of 1 meter digital orthophotograph quads (DOQ) or digital orthophotograph quarter quads (DOQQ) available. Additional reference boundary datasets acquired from BLM were used in digitizing such as roads, fence lines, allotment...
PronghornOverallRange is an ESRI SDE Feature Class showing Overall Range, The area which encompasses all known seasonal activity areas within the observed range of a population of pronghorn antelope. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35). Dataset was acquired from a third party distributor who obtained it from CDOW in January 2011. The authoritative data source is available on...
This dataset depicts 3 classes used as input to the FRAGSTATS tool for calculating fragmentation metrics. For this REA, we used the "Natural Vegetation" class in this dataset to calculate fragmentation metrics. Fragmentation classes were created from NLCD Impervious Surfaces, LANDFIRE EVT v1.1, NatureServe National Landcover v27, roads, utility lines, pipelines, and oil/gas wells.
This dataset shows the current distribution of Rocky Mountain Gambel Oak-Mixed Montane Shrubland (LANDFIRE EVT) within the context of current and near-term terrestrial intactness and long-term potential for energy development and potential for climate change (4KM reporting units). Current terrestrial intactness is based on current measures of landscape development, fire regime and vegetation impacts, and fragmentation. Near-term intactness includes estimates of urban growth and expansion of invasive vegetation. Long-term potential for energy development is based on areas of potential for wind, solar, and petroleum development derived from multiple sources. Long-term potential for climate change is based on absolute...
5th Code HUC reporting units for the Colorado Plateau Ecoregion Used as analytical reporting units for aquatic conservation elements.
This data set displays Off-Highway Vehicle (OHV) use restrictions for the Kanab Field for the Proposed RMP from management decisions made by the Kanab BLM field office resource specialists
Types: Downloadable;
Tags: 003; environment,
007; transportation,
BLM,
Bureau of Land Management,
COP 2010,
The 303(d) Listed Impaired Waters program system provides impaired water data and impaired water features reflecting river segments, lakes, and estuaries designated under Section 303(d) of the Clean Water Act. Each State will establish Total Maximum Daily Loads (TMDLs) for these waters. Note the CWA Section 303(d) list of impaired waters does not represent waters that are impaired but have an EPA-approved TMDL established, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution and is not caused by a pollutant; therefore, the "Impaired Waters" layers do not represent all impaired waters reported in a state's...
This dataset provides an estimate of potential water-based recreation areas. No systematically-collected existing information was available regarding water-based recreation areas. We selected large (greater than 1 square kilometer) waterbodies from the NHD waterbodies dataset. Not all of these areas may be open to recreation due to restrictions on access; access information is not available. Smaller waterbodies may also be important for recreation, but were not included here due to lack of information.
This is an aggregate national dataset describing the geographic boundaries of the ACEC within the BLM managed public lands. The designated ACECs are "areas within the public lands where special management attention is required to protect and prevent irreparable damage to important historic, cultural, or scenic values, fish and wildlife resources or other natural systems of processes, or to protect life and safety from natural hazards." This metadata was extracted from the ACEC file geodatabase feature class; however, due to ArcGIS bugs most metadata was lost.
Types: Downloadable;
Tags: Authorization,
BLM,
Bureau of Land Management,
COP 2010,
Colorado Plateau,
The rmu_unit feature class depicts the boundaries of the range Allotments, General Resource Areas, and Wild Horse and Burro territories on the Carson National Forest. Allotments are a designated area of land available for livestock grazing (36 CFR 222.1(b)(1). An allotment generally consists of NFS rangelands, but may include intermingled parcels of private, State, or other Federal lands with the consent of the landowner, lessee, or agency, and such designations result in logical range management units. General Resource Areas are boundaries outside of an designated allotment, and from which livestock may or may not graze. Administrative Sites, Special Use Pastures and Outside of Allotment Area are subtypes of this...
Average Annual Total Precipitation (2015-2030) simulated by RegCM3 with ECHAM5 projections as boundary conditions. Units are millimeters. These data were generated by the regional climate model RegCM3 with boundary conditions from a GCM future climate projections. The data were downscaled statistically by calculating differences (anomalies) between the RegCM3 results with GCM-driven boundary conditions for 1968-99 and those for a future period, in this case 2015-2030. The anomalies were added (temperatures) or multiplied (precipitation) to a climate baseline from PRISM (Parameter-elevation Regressions on Indepenent Slopes Model - prism.oregonstate.edu) data based on historical observations. The PRISM baseline was...
Difference of Potential Evapotranspiration (2045-2060 vs 1968-1999) simulated by the biogeography model MAPSS using RegCM3 climate with ECHAM5 projections as boundary conditions. Units are millimeters of water. MAPSS (Mapped Atmosphere-Plant-Soil System) is a static biogeography model that projects potential vegetation distribution and hydrological flows on a grid (http://www.databasin.org/climate-center/features/mapss-model). MAPSS has been used widely for various climate change assessments including the 2000 National Assessment Synthesis Team's report. MAPSS uses long term, average monthly climate data (mean monthly temperature, vapor pressure, wind speed, and precipitation) as well as soils information (texture,...
Location of BLM Field Offices
Types: Downloadable;
Tags: Authorization,
BLM,
Bureau of Land Management,
COP 2010,
Colorado Plateau,
Difference of Average Annual Total Precipitation (2045-2060 vs 1968-1999) simulated by RegCM3 with GFDL projections as boundary conditions. Units are millimeters. These data were generated by the regional climate model RegCM3 with boundary conditions from a GCM future climate projections. The data were downscaled statistically by calculating differences (anomalies) between the RegCM3 results with GCM-driven boundary conditions for 1968-99 and those for a future period, in this case 2015-2030. The anomalies were added (temperatures) or multiplied (precipitation) to a climate baseline from PRISM (Parameter-elevation Regressions on Indepenent Slopes Model - prism.oregonstate.edu) data based on historical observations....
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