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This dataset is a polygon coverage of the thickness of the overburden of the Pocahontas No. 3 coal bed, in feet. It was produced by importing 1:100,000 (30-minute) and 1:24,000 scale (7.5-minute) digital elevation models (DEM) into ARC, and merging the lattices into one. The structure elevation grid for the Pocahontas No. 3 coal bed was subtracted from the surface elevation grid, creating overburden thickness. This grid was contoured within the known extent of the Pocahontas No. 3 coal bed into 200, 500, 1000, 2000, and 3000 foot lines. This vector file was imported to ARC. Polygon attributes include a code for the USGS overburden category (Coal Resource Classification of the U.S. Geological Survey, USGS, Circular...
Categories: Web Site; Tags: 51027 = Buchanan, 51051 = Dickenson, 51167 = Russell, 51169 = Scott, 51185 = Tazewell, All tags...
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This dataset is a polygon coverage of the resource areas of the Lower Kittanning coal zone. The polygons are subdivided into 2 categories: resource areas inside the outcrop, and areas either too thin, outside the outcrop, or beyond data collection limits. The coal zone must contain at least 14 inches of coal to be a resource. This spatial data set of the Lower Kittanning coal bed and known mined areas is one of many Geographic Information System (GIS) products of the National Coal Assessment that is being conducted by the U.S. Geological Survey in cooperation with State geological surveys and other Federal and State agencies. The Lower Kittanning coal bed is an important economic coal in the northern part of the...
Categories: Web Site; Tags: 24001 = Allegany, 24023 = Garrett, 39009 = Athens, 39013 = Belmont, 39019 = Carroll, All tags...
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This dataset is a polygon coverage of the mined areas of the Pocahontas No. 3 coal bed. The polygons are subdivided into 3 categories. These categories are areas where resources are mined underground, areas where resources are mined on the surface, and areas where resources are not mined. This map is one of many Geographic Information System (GIS) products of the National Coal Assessment that is being conducted by the U.S. Geological Survey in cooperation with State geological surveys and other Federal and State agencies. The Pocahontas No. 3 coal bed occurs within the Pocahontas Formation (Lower Pennsylvanian) and underlies all or parts of Wyoming, McDowell, Raleigh, Summers, Mercer, Greenbrier, Logan, and Mingo...
Categories: Web Site; Tags: 51027 = Buchanan, 51051 = Dickenson, 51167 = Russell, 51169 = Scott, 51185 = Tazewell, All tags...
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This dataset represents the thickness of the potentially minable Fire Clay coal benches in Virginia, West Virginia, and Kentucky. The coal zone is known by other names, depending upon locale. The data were comprised of values from Kentucky in EXCEL format, data searched from the USGS' NCRDS database for Virginia and entered into StratiFact, and a StratiFact database obtained from the West Virginia Geological and Economic Survey (WVGES). Point data were gridded, the grid contoured and imported to ARC/INFO as polygons. The Kentucky portion was replaced by a polygonal thickness coverage obtained from the Kentucky Geological Survey that had been manually contoured, therefore State line discrepancies are to be expected....
Categories: Web Site; Tags: 21013 = Bell, 21025 = Breathitt, 21043 = Carter, 21051 = Clay, 21063 = Elliott, All tags...
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This spatial dataset of the Upper Freeport coal bed is one of many Geographic Information System (GIS) products of the National Coal Resource Assessment that is being conducted by the U.S. Geological Survey in cooperation with State geological surveys and other Federal and State agencies. The Upper Freeport coal bed is an important economic coal in the northern part of the Appalachian Basin and is of additional importance because it occurs stratigraphically at the boundary between the Middle Pennsylvanian Allegheny and Upper Pennsylvanian Conemaugh Groups throughout most of the Appalachian foreland basin in Ohio, Pennsylvania, West Virginia, and Maryland. The top of the Allegheny Group is defined as the top of the...
Categories: Web Site; Tags: 24001 = Allegany, 24023 = Garrett, 39009 = Athens, 39013 = Belmont, 39019 = Carroll, All tags...


    map background search result map search result map Overburden thickness categories of Pocahontas No. 3 coal bed Contours of potentially minable thickness for the Fire Clay coal zone in Virginia, Kentucky, and West Virginia Areal extent of the Upper Freeport coal bed in Maryland, Ohio, Pennsylvania, and West Virginia Mined Areas of the Pocahontas No. 3 Coal Bed Coal resource areas of Lower Kittanning coal zone Mined Areas of the Pocahontas No. 3 Coal Bed Overburden thickness categories of Pocahontas No. 3 coal bed Contours of potentially minable thickness for the Fire Clay coal zone in Virginia, Kentucky, and West Virginia Areal extent of the Upper Freeport coal bed in Maryland, Ohio, Pennsylvania, and West Virginia Coal resource areas of Lower Kittanning coal zone