Ashland coalfield boundary; assessment area for the Knobloch coal resource unit (knbndg.shp)

공공데이터포털

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 specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

Knobloch coal resource unit - main coal bed split, 1999 National Coal Resource Assessment (knsplitg.shp)

공공데이터포털

This ArcView shapefile contains a polygon representation of the Knobloch coal resource unit - main coal bed split. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

Knobloch coal resource unit - main coal bed split, 1999 National Coal Resource Assessment (knsplitg.shp)

공공데이터포털

This ArcView shapefile contains a polygon representation of the Knobloch coal resource unit - main coal bed split. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

Knobloch clinker, Southern Montana, 1999 National Coal Resource Assessment (knclkg.shp)

공공데이터포털

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 fused rocks that are commonly red or red-brown in color. In this coverage, only clinker formed by the burning of the Knobloch coal bed is represented. Additionally, clinker of the Knobloch coal bed that is present within the Northern Cheyenne Indian Reservation is not shown. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

Knobloch clinker, Southern Montana, 1999 National Coal Resource Assessment (knclkg.shp)

공공데이터포털

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 fused rocks that are commonly red or red-brown in color. In this coverage, only clinker formed by the burning of the Knobloch coal bed is represented. Additionally, clinker of the Knobloch coal bed that is present within the Northern Cheyenne Indian Reservation is not shown. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

Decker Coalfield Boundary, Montana, from 1999 National Coal Resource Assessment (dkcnbndg.shp)

공공데이터포털

This ArcView shapefile contains a representation of the Decker coalfield boundary. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

Decker Coalfield Boundary, Montana, from 1999 National Coal Resource Assessment (dkcnbndg.shp)

공공데이터포털

This ArcView shapefile contains a representation of the Decker coalfield boundary. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

Colstrip coal field boundary and the Rosebud-Robinson coal zone (rsbndg.shp)

공공데이터포털

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 the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

Colstrip coal field boundary and the Rosebud-Robinson coal zone (rsbndg.shp)

공공데이터포털

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 the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

Decker coalfield clinker from 1999 National Coal Resource Assessment (dkclkg.shp)

공공데이터포털

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 Mountains and Great Plains Region.