The Clearfield Coalfield is a bituminous coal mining area in Clearfield County, Pennsylvania, United States. The coal seams are found in most parts of Clearfield County, with the notable exception of the northern part of the county.
The Clearfield Coalfield is a bituminous coal mining area in Clearfield County, Pennsylvania, United States. The coal seams are found in most parts of Clearfield County, with the notable exception of the northern part of the county. (en)
The Clearfield Coalfield is a bituminous coal mining area in Clearfield County, Pennsylvania, United States. The coal seams are found in most parts of Clearfield County, with the notable exception of the northern part of the county. (en)