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Found 56 dataset(s) matching "National Coal Resource Assessment (NCRA)".
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This ArcView shapefile contains a polygon representing the boundary of the Powder River Basin based on a generalized contact of Cretaceous and Tertiary rocks. This theme was created specifically...
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This dataset portrays the boundary of the Regions as defined for the National Coal Resource Assessment Project.
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This ArcView shape file contains a line representation of the Knobloch coal bed outcrop or contact with clinker in the Ashland coalfield as defined in the USGS National Coal Resource Assessment...
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This ArcView shapefile contains a polygon representation of the northern boundary of the Powder River Basin (Montana). This theme was created specifically for the National Coal Resources...
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This ArcView shapefile contains a polygon representation of the Hanna and Carbon Basins, Wyoming. This shapefile was created as part of the National Coal resource Assessment in the Northern...
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This ArcView shapefile contains a polygon representation of the Green River Basin boundary. This boundary is a part of the National Coal Resource Assessment of the Northern Rocky Mountain and...
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This is a shapefile and coverage of data points used in the assessment of coal resources of the Fruitland Formation in the San Juan Basin, Colorado and New Mexico. Data in this file include a...
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This ArcView shapefile contains a polygon representation of the Ashland coalfield, Montana, as defined in the USGS National Coal Resource Assessment (NCRA) project. This theme was created...
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These are shapefiles and ARC/INFO coverages of coal fields and coal-bearing formations in the Colorado Plateau. These GIS layers were created by combining numerous ARC/INFO coverages created for...
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This is a shapefile and ARC/INFO point coverage of coal geochemistry in the Colorado Plateau. This GIS layer was created from the U.S. Geological Survey's USCHEM database for the Colorado Plateau...
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Final unioned polygon coverages and shapefiles used to calculate coal resources of the A through G coal zones, Danforth Hills coal field, northwestern Colorado. Danafing was used for the A coal...
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These are shapefiles and ARC/INFO coverages that outline the areas within which coal resources are calculated and reported for the A/B through G coal zones, Danforth Hills coal field. The...
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This data set portrays the land ownership polygon features in the U.S. Geological Survey (USGS) Colorado Plateau coal assessment study area (Colorado, Utah, New Mexico and Arizona). The data set...
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These are shapefiles and coverages of data points used in the assessment of coal zones A, B, C, and D in the Yampa coal field, northwestern Colorado. There are four separate shapefiles, one for...
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These are shapefiles and coverages of final unioned polygon coverages used to calculate coal resources of the Cameo/Fairfield coal group east of 107 deg 15' longitude, and the Cameo/Wheeler, South...
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These are shapefiles and polygon coverages that contain numerous attributes of information on coal in the Calico and A-sequences of the Upper Cretaceous Straight Cliffs Formation in the...
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This is a shapefile and coverage that outlines the area underlain by coals in the lower Blackhawk Formation, southern Wasatch Plateau coal assessment area. The polygons delimit the area within...
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This is a shapefile and the final unioned polygon coverage used to calculate coal resources of the Fruitland Formation, San Juan Basin coal assessment area, Colorado and New Mexico. Polygons that...
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This is a shapefile and the final unioned polygon coverage used to calculate coal resources of the lower Blackhawk Formation in the southern Wasatch coal assessment area. Polygons that make up the...
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These are shapefiles and final unioned polygon coverages used to calculate coal resources of the A through D coal zones, Yampa coal field, northwestern Colorado. Yamafing was used for the A coal...
