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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 the Colorado Plateau coal assessment. The coal field outlines are approximate boundaries based on criteria provided below under Data Quality Information, Process Steps. These coal field outlines may not overlap exactly with other published coal field boundaries or with criteria used in the geochemistry data. We used existing polygons taken from numerous digital geologic maps, as described in Process Steps, but did not use overburden cutoffs.
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These are shapefiles and ARC/INFO polygon coverages showing the isopachs of total net coal in beds greater than or equal to 1.2' thick for the A through G coal zones, Danforth Hills coal field. The coverage danathkg is the isopach coverage for the A coal zone; danbthkg is for the B coal zone, and so on.
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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 Canyon, and Coal Ridge coal zones west of 107 deg 15' longitude in the southern Piceance Basin, northwestern Colorado. Pscbfing was used for the area east of 107 deg 15' longitude; pscwfing was used for the Cameo/Wheeler coal zone; psscfing was used for the South Canyon coal zone; pscrfing was used for the Coal Ridge coal zone. Polygons that make up the final unioned polygons include counties, 7.5' quadrangles, townships, surface and coal ownership, reliability, and, overburden. The final unioned coverage for each coal...
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This is a shape file and coverage of the top of the Rollins Sandstone Member. It outlines the area underlain by the coal-bearing Cameo/Fairfield coal group in the southern Piceance Basin coal assessment area. Also, it delimits the area within which resources were calculated and reported in the southern Piceance Basin coal assessment area. The polygon was adjusted to match the topography of the DEM.
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This is a shapefile and coverage of ownership in the southern Piceance Basin coal assessment area, northwestern Colorado. Polygons that make up the coverage include counties, 7.5' quadrangles, townships, and surface and coal ownership. The ownership coverage was clipped by the resource boundary polygon for the coal-bearing Mesaverde Formation and Mesaverde Group which is described in the metadata file for the psmv_bnd coverage.
    map background search result map search result map Public data points (wells) in Danforth Hills coal field, Colorado Plateau (danptg) Area of coal-bearing Mesaverde Formation and Mesaverde Group, southern Piceance Basin assessment area, Colorado (psmvbndg) Land status and Federal mineral ownership, southern Piceance basin (psowng) Unioned layer of coal resource calculation in the southern Piceance Basin, Colorado (ps*fing) Coal fields and outlines of coal-bearing strata in the Colorado Plateau coal assessment study area (cpcf*g) Isopachs of total net coal in beds >1.2' thick, A - G coal zones, Danforth Hills coal field (dan*thkg) Public data points (wells) in Danforth Hills coal field, Colorado Plateau (danptg) Isopachs of total net coal in beds >1.2' thick, A - G coal zones, Danforth Hills coal field (dan*thkg) Area of coal-bearing Mesaverde Formation and Mesaverde Group, southern Piceance Basin assessment area, Colorado (psmvbndg) Land status and Federal mineral ownership, southern Piceance basin (psowng) Unioned layer of coal resource calculation in the southern Piceance Basin, Colorado (ps*fing) Coal fields and outlines of coal-bearing strata in the Colorado Plateau coal assessment study area (cpcf*g)