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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...
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This table contains information about the amount of each threat analysis attribute, indicator and metric quantified for the 6th level Hydrological Unit (HUC12). These attributes were calculated for the entire HUC 12, the streams within the HUC 12, or the riparian corridor within the HUC 12. The attributes were calculated using ArcMap Tools.
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This dataset was created as a way to have standard fish distribution datasets across the various fish species for the study area. This was needed because the original source datasets for fish distributions came from several different sources and were at various scales and also overlapped. To fix the issues in the source datasets we walked the original data over to the NHD Plus hydrography.
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This table contains information about the amount of each threat analysis attribute, indicator and metric quantified for the 6th level Hydrological Unit (HUC12). These attributes were calculated for the entire HUC 12, the streams within the HUC 12, or the riparian corridor within the HUC 12. The attributes were calculated using ArcMap Tools.
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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...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
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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...
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Downloaded from Idaho Department of Water Resources http://www.idwr.idaho.gov/GeographicInfo/GISdata/gis_data.htm. Contains information on water rights, water rights permits, minimum stream flow for Idaho.
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
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The Vista tool is used to create a Scenario of the CAs affecting the North American Warm Desert Lower Montane Riparian Woodland, Shrubland and Stream CE and applies user-input Landscape Condition Model (LCM) scores to generate ESAs for each of the CEs. The LCM consists of Site Impact scores and impact Distances for each CA category. Site Impact scores are a value between 0 and 1 representing the impact of the CA on the relevant CEs. A score close to 1 indicates negligible or no impact from that CA. A score close to 0 indicates the highest possible impact, e.g. an interstate highway that makes the area in which it occurs completely unsuitable for the CE. Distances are set in meters and extend the impact of the CA...
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This 1-kilometer resolution raster (grid) dataset is an index of mean annual natural ground-water recharge. The dataset was created by multiplying a grid of base-flow index (BFI) values by a grid of mean annual runoff values derived from a 1951-80 mean annual runoff contour map. Mean annual runoff is long-term average streamflow expressed on a per-unit-area basis. The concept used to construct the dataset is based on two assumptions: (1) long-term average natural ground-water recharge is equal to long-term average natural ground-water discharge to streams, and (2) the base-flow index reasonably represents, over the long term, the percentage of natural ground-water discharge in streamflow.
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Active Water Rights of Montana. The data consists of estimated locations of all the active recorded points of diversion and points of use in the water rights database. There are four separate spatial layers: Points of diversion, Points of Use, Points of Reservoirs, and Points of Use for Irrigation (a subset of Points of Use). The version of this data available at the State Library is updated on a weekly basis. For administrative purposes, the original version of all active water rights is given (i.e. Version ID = 1). If change of information about a particular water right has occurred over time, there will be an additional version of the water right, and depending on how many changes, there will only be one other...
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Landscape-level ecological value was based on length of perennial and ephemeral/intermittent streams within a 5th-level watershed assessed as the length of stream per area of watershed.
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All wetlands within the Wyoming Basin REA Project area including lake, riverine, or river wetland types compiled from National Wetlands Inventory data from the five states in the project area.
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Compiled from National Hydrography point events point data where EventType is Dam for the Wyoming Basin REA project area. Dams within the Wyoming Basin were identifed for use in barrier determination and flow restrictions.
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Distance (m) to Perennial Water within the Wyoming Basins Ecoregional Assessment area, produced by Hanser and others, 2011 (Hanser, S. E., M. Leu, S. T. Knick, and C. L. Aldridge, eds. 2011. Sagebrush ecosystem conservation and management: ecoregional assessment tools and models for the Wyoming Basins. Allen Press, Lawrence, KS.) http://sagemap.wr.usgs.gov/wbea.aspx#CAdata
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The Vista tool is used to create a Scenario of the CAs affecting the North American Warm Desert Riparian Woodland, Shrubland, Mesquite Bosque and Stream CE and applies user-input Landscape Condition Model (LCM) scores to generate ESAs for each of the CEs. The LCM consists of Site Impact scores and impact Distances for each CA category. Site Impact scores are a value between 0 and 1 representing the impact of the CA on the relevant CEs. A score close to 1 indicates negligible or no impact from that CA. A score close to 0 indicates the highest possible impact, e.g. an interstate highway that makes the area in which it occurs completely unsuitable for the CE. Distances are set in meters and extend the impact of the...
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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...


map background search result map search result map BLM REA MIR 2011 Grayling Distribution BLM REA MIR 2011 AG C Cold Water Fish Threats Chinook BLM REA MIR 2011 AG C Cold Water Fish Threats Future Wildfire BLM REA COP 2010 NatureServe National Landcover (v27) ColoradoPlateauMixedBedrockCanyonTableland_NatureServe_DIST_30m BLM REA SOD 2010 National Hydrography Dataset (waterbodies) BLM REA WYB 2011 AE C STREAM ECOLOGICAL VALUE Poly overall values BLM REA WYB 2011 Wetlands - Distribution All Wetlands BLM REA WYB 2011 ExSrc C DamsMerged pt BLM REA WYB 2011 Distance (m) to perennial water BLM REA WYB 2011 Idaho 303(d) Streams BLM REA WYB 2011 Idaho Department of Water Resources WRPOD BLM REA WYB 2011 Montana Water Rights BLM REA MAR 2012 Aquatic Ecosystem Ecological Status Assessment: North American Warm Desert Lower Montane Riparian Woodland, Shrubland and Stream 30m BLM REA MAR 2012 NHDPointEventFC - MAR BLM REA MAR 2012 Soils at Risk of Water Erosion BLM REA MAR 2012 Aquatic Ecosystem Ecological Status Assessment: North American Warm Desert Riparian Woodland, Shrubland, Mesquite Bosque and Stream HUC 10 BLM REA MAR 2012 NatureServe Terrestrial Ecosystems v2.9  - MAR BLM REA NGB 2011 Groundwater Withdrawals Groundwater Recharge in the NGB BLM REA NGB 2011 AE NHD Waterbody poly BLM REA SLV 2013 EPA 303d ln BLM REA SLV 2013 EPA 303d ln BLM REA MAR 2012 NHDPointEventFC - MAR BLM REA MAR 2012 Aquatic Ecosystem Ecological Status Assessment: North American Warm Desert Riparian Woodland, Shrubland, Mesquite Bosque and Stream HUC 10 BLM REA MAR 2012 Aquatic Ecosystem Ecological Status Assessment: North American Warm Desert Lower Montane Riparian Woodland, Shrubland and Stream 30m BLM REA MAR 2012 Soils at Risk of Water Erosion BLM REA MAR 2012 NatureServe Terrestrial Ecosystems v2.9  - MAR BLM REA WYB 2011 Montana Water Rights BLM REA WYB 2011 Idaho 303(d) Streams BLM REA SOD 2010 National Hydrography Dataset (waterbodies) BLM REA WYB 2011 ExSrc C DamsMerged pt BLM REA MIR 2011 Grayling Distribution BLM REA WYB 2011 Wetlands - Distribution All Wetlands BLM REA WYB 2011 AE C STREAM ECOLOGICAL VALUE Poly overall values BLM REA WYB 2011 Idaho Department of Water Resources WRPOD BLM REA WYB 2011 Distance (m) to perennial water BLM REA MIR 2011 AG C Cold Water Fish Threats Chinook BLM REA MIR 2011 AG C Cold Water Fish Threats Future Wildfire BLM REA COP 2010 NatureServe National Landcover (v27) ColoradoPlateauMixedBedrockCanyonTableland_NatureServe_DIST_30m BLM REA NGB 2011 AE NHD Waterbody poly BLM REA NGB 2011 Groundwater Withdrawals Groundwater Recharge in the NGB