Quality characterization of Cretaceous coal from the Colorado Plateau coal assessment study area, 2000 (cpchmg)

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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 coal assessment.

Coal fields and outlines of coal-bearing strata in the Colorado Plateau coal assessment study area (cpcf*g)

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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.

Coal fields and outlines of coal-bearing strata in the Colorado Plateau coal assessment study area (cpcf*g)

공공데이터포털

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.

Coal Quality Samples from the Northern Rocky Mountains and Great Plains Region

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This ArcView shapefile contains a point representation of coal quality samples. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

Coal Quality Samples from the Northern Rocky Mountains and Great Plains Region

공공데이터포털

This ArcView shapefile contains a point representation of coal quality samples. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

Dta points used in assessment of coal in the southern Piceance basin study area (psptg)

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This is a shapefile and point coverage of 627 data points used in the assessment of coal in the southern Piceance Basin study area. Information in this file includes x, y location and point identifier. Lithologic and stratigraphic data and the geographic distribution of coal are based on our interpretations of geophysical logs from 526 drill holes as well as published lithologic descriptions from 31 coal exploration holes and 70 published stratigraphic sections described from outcrops.

Dta points used in assessment of coal in the southern Piceance basin study area (psptg)

공공데이터포털

This is a shapefile and point coverage of 627 data points used in the assessment of coal in the southern Piceance Basin study area. Information in this file includes x, y location and point identifier. Lithologic and stratigraphic data and the geographic distribution of coal are based on our interpretations of geophysical logs from 526 drill holes as well as published lithologic descriptions from 31 coal exploration holes and 70 published stratigraphic sections described from outcrops.

Land status in the Colorado Plateau coal assessment study area - Colorado, Utah, New Mexico and Arizona (cplowng)

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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 was created by clipping a national land ownership coverage of federal land polygon features that had been extracted from the individual USGS 1:2,000,000-scale state boundary Digital Line Graph (DLG) files and then paneled into a single coverage. The original national coverage metadata document is included here and modified slightly to indicate that the geographic areal extent is that of portions of Colorado, Utah, New Mexico and Arizona.

Land status in the Colorado Plateau coal assessment study area - Colorado, Utah, New Mexico and Arizona (cplowng)

공공데이터포털

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 was created by clipping a national land ownership coverage of federal land polygon features that had been extracted from the individual USGS 1:2,000,000-scale state boundary Digital Line Graph (DLG) files and then paneled into a single coverage. The original national coverage metadata document is included here and modified slightly to indicate that the geographic areal extent is that of portions of Colorado, Utah, New Mexico and Arizona.

The Colorado Plateau coal assessment study area, 2000 (cpstdyg)

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This is a coverage of the Colorado Plateau coal assessment study area. The study area outline was drawn on the county lines that most closely outline the coal-bearing rocks in the Colorado Plateau Region. The county outlines originate from a national coverage for which lines were extracted from U.S. Census 1990 TIGER/line files using an AML program written by Nebert, D., and Negri, M., USGS-Water Resources Division (WRD), running on two Data General 6220 servers.