Service Description: Coal Fields of the Conterminous United States: National Coal Resource Assessment Updated Version This dataset was compiled to update the Coal Fields Map of the Conterminous United States OFR 96-92, using new data provided by the USGS Energy Program NCRA assessments. The pdf and shapefiles were updated with the intent to remove outdated economic information that was rendered obsolete due to changes in technology. New attributes for regional or area names, provinces, and the geologic age of the coal were added as well as in other miscellaneous graphic products for demonstration purposes with other Federal agencies and Congress.

Service ItemId: 974460ded2554a34aae72cfb4e6e3450

Has Versioned Data: false

Max Record Count: 2000

Supported query Formats: JSON

Supports applyEdits with GlobalIds: False

Supports Shared Templates: True

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Layers:

• coal_fields (0)

Description: This dataset is a polygon shapefile representing the most recent update of the coal fields of the conterminous United States. Scale of data is 1:5,000,000. This publication is based on a USGS paper map that was a representation of the coal fields and major regions of the time (Trumbull, 1960). Trumbull's 1960 map was digitized and coal fields from the Gulf Coast were added to create USGS OFR 96-92, Coal Fields of the Conterminous United States (Tully, 1996). Tully's (1996) publication consisted of a map in pdf format that could be printed, and an ArcInfo coverage of the coal fields, attributed with rank and potential economic use (minability) of the coal. This new dataset includes a pdf showing updated coal fields and a shapefile that contains attributes on coal rank (without regard to outdated economic standards), province, name, and age. The data used to update Tully's (1996) digital map was collected from the National Coal Resource Assessment (NCRA) regional Professional Papers produced by the USGS and from AAPG Discovery Series 14/Studies in Geology 62, all of which were conducted by USGS geologists and professional staff. A small number of field names were added and or updated in the western states of Washington, Oregon, California, Utah, Colorado and New Mexico using additional coal resource literature. Clipped to Oregon and adjacent counties in neighboring states.

Copyright Text: U.S. Geological Survey (USGS)

Spatial Reference: 102003 (102003)

Initial Extent:

XMin: -2298321.55954
YMin: 590184.919230001
XMax: -1436654.39186
YMax: 1369414.26177
Spatial Reference: 102003 (102003)

Full Extent:

XMin: -2259154.8701
YMin: 625604.434800001
XMax: -1475821.0813
YMax: 1333994.7462
Spatial Reference: 102003 (102003)

Units: esriMeters

Child Resources:   Info   SharedTemplates

Supported Operations:   Query   ConvertFormat   Get Estimates   Create Replica