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• Organization: Department of the Interior
• Updated: 20210615 | Harvested: July 16, 2025 at 01:04 PM

These ArcView shapefiles contain: 1) a representation of thickness of overburden above the Anderson-Canyon coal zone, and 2) a representation of exposed zone for the Anderson-Canyon coal zone in...

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• Organization: Department of the Interior
• Updated: 20210525 | Harvested: July 16, 2025 at 12:57 PM

This ArcView shape file contains a polygon representing the extent of the Wind River coal basin boundary. This theme was created specifically for the National Coal Resources Assessment in the...

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• Organization: Department of the Interior
• Updated: 20210520 | Harvested: July 16, 2025 at 01:19 PM

This ArcView shapefile contains a polygon representing the extent of the Bull Mountain coal basin boundary. This theme was created specifically for the National Coal Resources Assessment in the...

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• Organization: Department of the Interior
• Updated: 20210524 | Harvested: July 16, 2025 at 01:13 PM

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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• Organization: Department of the Interior
• Updated: 20210524 | Harvested: July 16, 2025 at 01:13 PM

This ArcView shapefile is a polygon representation of the overburden thickness above the Knobloch coal resource unit in the Powder River Basin. This theme was created specifically for the National...

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• Organization: Department of the Interior
• Updated: 2022-05-25T03:25:58.172Z | Harvested: June 25, 2025 at 09:53 PM

<div style='text-align:Left;'><div><div><p><span>QUADS30M_POLY: This theme shows the 1:63,360 quadrangles (30 Minute Quads) for Oregon and Washington as defined in North American Datum 1927...

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• Organization: Department of the Interior
• Updated: 2022-06-02T15:35:41Z | Harvested: September 25, 2025 at 04:49 AM

<div style='text-align:Left;'><div><div><p><span>QUADS30M_POLY: This theme shows the 1:63,360 quadrangles (30 Minute Quads) for Oregon and Washington as defined in North American Datum 1927...

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• xlsx
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• geojson
• +6 more

• Organization: Department of the Interior
• Updated: 20210521 | Harvested: July 16, 2025 at 01:18 PM

This ArcView shapefile contains a representation of clinker in the Decker coalfield area. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky...

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• Organization: Department of the Interior
• Updated: 20210525 | Harvested: July 16, 2025 at 01:15 PM

This ArcView shapefile contains a polygon representation of the Colstrip coalfield boundary and the Rosebud-Robinson coal zone resource assessment area.. This theme was created specifically for...

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• Organization: Department of the Interior
• Updated: 20210521 | Harvested: July 16, 2025 at 01:16 PM

This ArcView shapefile contains a representation of the total, net coal thickness in the Anderson-anyon coal zone, Decker coalfield, Montana. This theme was created specifically for the National...

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• xml

• Organization: Department of the Interior
• Updated: 2022-06-02T15:35:41Z | Harvested: September 24, 2025 at 04:42 AM

<div style='text-align:Left;'><div><div><p><span>QUADS15M_POLY: This theme shows the 1:62,500 quadrangles (USGS 15 minute series) for Oregon and Washington as defined in North American Datum 1927...

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• csv
• xlsx
• txt
• zip
• geojson
• +6 more

• Organization: Department of the Interior
• Updated: 2022-05-25T03:25:32.77Z | Harvested: June 25, 2025 at 09:58 PM

<div style='text-align:Left;'><div><div><p><span>QUADS15M_POLY: This theme shows the 1:62,500 quadrangles (USGS 15 minute series) for Oregon and Washington as defined in North American Datum 1927...

• html
• csv
• xlsx
• txt
• zip
• gpkg
• +6 more

• Organization: Department of the Interior
• Updated: 20210525 | Harvested: July 16, 2025 at 01:10 PM

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...

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• Organization: Department of the Interior
• Updated: 20210525 | Harvested: July 16, 2025 at 01:11 PM

This ArcView shapefile contains a line (arc) representation of the Robinson coal bed outcrop. This theme was created specifically for the National Coal Resources Assessment in the Northern...

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• Organization: Department of the Interior
• Updated: 20210524 | Harvested: July 16, 2025 at 01:06 PM

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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• Organization: Department of the Interior
• Updated: 20210525 | Harvested: July 16, 2025 at 01:07 PM

This ArcView shapefile contains a representation of the Johnson-107 coal zone net coal thickness. The Johnson-107 coal zone is in the South Carbon coalfield in the Carbon Basin, Wyoming. This...

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• Organization: Department of the Interior
• Updated: 20210525 | Harvested: July 16, 2025 at 01:14 PM

This ArcView shapefile contains a polygon representation of the total, net coal thickness map of the Rosebud-Robinson coal zone in the Colstrip coalfield (Powder River Basin) Montana. This theme...

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• Organization: Department of the Interior
• Updated: 20210524 | Harvested: July 16, 2025 at 01:11 PM

This ArcView shapefile contains a polygon representation of numerous themes for the Knobloch coal resource assessment unit. These themes are listed in the process steps. Its sole purpose is to...

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• Organization: Department of the Interior
• Updated: 20210524 | Harvested: July 16, 2025 at 01:08 PM

The clinker theme represents a digital polygon coverage showing areas where clinker is present. Clinker forms from the natural burning of coal beds in outcrop, and consists of baked (melted) and...

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• Organization: Department of the Interior
• Updated: 20210521 | Harvested: July 16, 2025 at 01:18 PM

This shapefile contains a representation of the Anderson coal bed outcrop or contact with clinker, Decker coalfield, Powder River Basin, southeast Montana. This theme was created specifically for...

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