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Map containing historical census data from 1900 - 2000 throughout the western United States at the county level. Data includes total population, population density, and percent population change by decade for each county. Population data was obtained from the US Census Bureau and joined to 1:2,000,000 scale National Atlas counties shapefile.
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The Critical Minerals in Archived Mine Samples Database (CMDB) contains chemistry and geologic information for historic ore and ore-related rock samples from mineral deposits in the United States. In addition, the database contains samples from archetypal deposits from 27 other countries in North America, South America, Asia, Africa and Europe. Samples were obtained from archived ore collections under the U.S. Geological Survey's project titled "Quick Assessment of Rare and Critical Metals in Ore Deposits: A National Assessment" (2008 to 2013) in an effort to begin an assessment of the Nations' previously mined ore deposits for critical minerals. Mineralized and altered rock samples were provided by the Colorado...
Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Argentina, Arizona, Arkansas, Australia, All tags...
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This dataset represents roads in the Crown of the Continent Ecosystem (with a 50km buffer). Developed with the most recently available data and represents roads in ~2016. This dataset was developed by the Crown Managers Partnership, as part of a transboundary collaborative management initiative for the Crown of the Continent Ecosystem, based on commonly identified management priorities that are relevant at the landscape scale. The CMP is collaborative group of land managers, scientists, and stakeholder in the CCE. For more information on the CMP and its collaborators, programs, and projects please visit: http://crownmanagers.org/ This dataset has been produced by merging the "National Road Network (NRN) - AB,...
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This layer has been updated in 2016 This shapefile represents the watersheds present within the Crown of the Continent Ecosystem (CCE) boundary.(Note: a different CCE boundary layer was used at the time of creation, so the area amounts within the CCE may not be accurate)This dataset was developed by the Crown Managers Partnership, as part of a transboundary collaborative management initiative for the Crown of the Continent Ecosystem, based on commonly identified management priorities that are relevant at the landscape scale. The CMP is collaborative group of land managers, scientists, and stakeholder in the CCE. For more information on the CMP and its collaborators, programs, and projects please visit: http://crownmanagers.org/
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Sage-grouse core areas are habitats associated with 1) Montana's highest densities of sage-grouse (25% quartile), based on male counts and/or 2) sage-grouse lek complexes and associated habitat important to sage-grouse distribution. The data are intended for display of sage grouse core areas in Montana. The data are intended for initial resource review and conservation planning. For evaluating or reviewing site specific applications Montana Fish, Wildlife & Parks (FWP) recommends contacting the appropriate FWP Regional office. These are the Montana SageGrouse Core Areas 2010 polygons for Idaho-SW Montana Greater Sage Grouse Subregion. Areas that overlap into Idaho do not apply to Idaho and may represent difference...
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Major land uses in Montana from the National Atlas of the United States, (1970) page 158.
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Montana Population in persons per square mile from the 2000 Census. This data is a smoothed-over representation of Montana's population density surface, designed to emphasize small areas with high population density. It was derived from U.S. Census Bureau 2000 TIGER files and population counts. The original data was resampled to a 100-meter grid, smoothed, and the highest resulting density of the 100-meter cells in each 1-kilometer grid cell was assigned to the cell. When comparing this data set to the similar data set available from NRIS for the 1990 Census, it is important to realize that the change of population density at a location is likely to be the result of a change in the configuration of the Census...
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This layer provides information on putative winter corridors facilitating dispersal from northern populations to patches capable of supporting Canada lynx in the Northern Rocky Mountains. These results combine resource selection, step selection, and least-cost path models to define movement corridors for lynx in the Northern Rocky Mountains. The illustrated corridors were created by using a one-mile buffer around the putative winter corridors facilitating dispersal from northern populations to patches capable of supporting Canada lynx in the Northern Rocky Mountains
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This shapefile contains a representation of the Canyon coal bed outcrop or clinker contact in the Decker coalfield, Powder River Basin, Montana. This area is part of the National Coal Assessment Rocky Mountain and Northern Great Plains Region.
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This ArcView shapefile contains a polygon representation of the Knobloch coal resource unit - main coal bed split. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.
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River valley boundary extents were generated for select large river floodplains of the Upper Midwest, United States. These polygons were delineated using a method that incorporated interpolating a water surface elevation that completely over-topped water-control structures within the valley such as levees, flood walls, and roadways. The intersection of this derived water surface and land elevation at the outermost edge of the floodplain was used to delineate the approximate extent of the river valley boundary. We used best professional judgment to approximate this water surface elevation.
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Shallow subsurface electrical conductivity was mapped at Stateline National Wildlife Refuge (NWR) in northeast Montana using the DUALEM421 electromagnetic sensor (Dualem, Inc., ON, Canada) in the winter of 2017. Data were acquired by towing the DUALEM421 sensor on a sled behind an all-terrain vehicle or snow machine, with the sensor at a nominal height of 0.3 meters (m) above ground surface. Approximately 3 line-kilometers (km) of data were acquired over an area of approximately .2 square-kilometers. Data were manually edited to remove sensor dropouts, lag corrected for apparent offsets between recorded GPS location and data locations for each coil pair, and averaged to a sounding distance of 1m along the survey...
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Shallow subsurface electrical conductivity was mapped at North Root National Wildlife Refuge (NWR) in northeast Montana using the DUALEM421 electromagnetic sensor (Dualem, Inc., ON, Canada) in the winter of 2017. Data were acquired by towing the DUALEM421 sensor on a sled behind an all-terrain vehicle or snow machine, with the sensor at a nominal height of 0.3 meters (m) above ground surface. Approximately 9 line-kilometers (km) of data were acquired over an area of approximately 1 square-kilometer. Data were manually edited to remove sensor dropouts, lag corrected for apparent offsets between recorded GPS location and data locations for each coil pair, and averaged to a sounding distance of 1m along the survey...
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The polygon (vector) shapefile represents Public Land Survey System (PLSS) sections, or 1-square mile areas of land, with information about Bureau of Land Management (BLM) land and mineral use authorizations for mining claims. For each section, the number of claims (by type) was determined and a density (by claim type) was calculated. The land areas specified by BLM authorizations vary in size and orientation, and may cross PLSS section boundaries. For spatial consistency, the information was aggregated to the square mile PLSS section boundary. The original source data from BLM Cases Recordation database (LR2000) were specific to the day they were generated (March 6, 2016) and subsequent data pulls will likely be...
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This layer represents 5-year relative counts of wildlife carcasses collected by Montana Department of Transportation (MDT) maintenance personnel or U.S. Fish & Wildlife Service Grizzly Bear Recovery Team personnel on or adjacent to on-system (major) routes from 2008 to 2012. To obtain relative counts, the 5-year total counts per mile, which included all wildlife species observed, were divided by the maximum observed calue (98) to give a relative 0-1 risk score. Total counts, which include all wildlife species observed, along with carnivore counts, which include only black bears, grizzly bears, mountain lions, and wolves, are provided. Counts were derived by identifying the nearest mile marker to each carcass point...
map background search result map search result map SW Montana Greater Sage-grouse Core Areas Land Use Montana 2000 Population Density 1-km grid Road-Killed Wildlife Carcass Frequency by Mile of Montana On-System Routes in the U.S. Northern Rockies (2008-2012) Human Population in the Western United States (1900 - 2000) All Roads in the Western United States Canada Lynx Connectivity Winter Corridors - 1 mile buffer Major Lakes Crown of the Continent Ecosystem (CCE) z_Archive Watersheds in the CCE Roads c2016 in the Crown of the Continent BLM LR2000 mining claim authorizations (density) for the Sagebrush Mineral-Resource Assessment (SaMiRA) aggregated by Public Land Survey System (PLSS) section boundaries Ports of the United States Global Geochemical Database for Critical Minerals in Archived Mine Samples North Root NWR, Montana, 2017 Stateline NWR, Montana, 2017 River Valley Boundaries Generated for Select Large Rivers of the Upper Midwest, United States Canyon coal bed outcrop and clinker contact from 1999 National Coal Resource Assessment (dkcnocg.shp) Knobloch coal resource unit - main coal bed split, 1999 National Coal Resource Assessment (knsplitg.shp) Powder River Basin boundary, 1999 Coal Resource Assessment (prbbndg.shp) U.S. Forest Service land in the Powder River Basin (prbfsg.shp) Stateline NWR, Montana, 2017 North Root NWR, Montana, 2017 Knobloch coal resource unit - main coal bed split, 1999 National Coal Resource Assessment (knsplitg.shp) SW Montana Greater Sage-grouse Core Areas U.S. Forest Service land in the Powder River Basin (prbfsg.shp) Canada Lynx Connectivity Winter Corridors - 1 mile buffer Powder River Basin boundary, 1999 Coal Resource Assessment (prbbndg.shp) z_Archive Watersheds in the CCE Roads c2016 in the Crown of the Continent Road-Killed Wildlife Carcass Frequency by Mile of Montana On-System Routes in the U.S. Northern Rockies (2008-2012) Montana 2000 Population Density 1-km grid Land Use BLM LR2000 mining claim authorizations (density) for the Sagebrush Mineral-Resource Assessment (SaMiRA) aggregated by Public Land Survey System (PLSS) section boundaries River Valley Boundaries Generated for Select Large Rivers of the Upper Midwest, United States All Roads in the Western United States Major Lakes Crown of the Continent Ecosystem (CCE) Human Population in the Western United States (1900 - 2000) Ports of the United States Global Geochemical Database for Critical Minerals in Archived Mine Samples