Western Coal Field (original) (raw)

The West Kentucky Coal Field comprises an area in the west-central and northwestern part of the state, bounded by the and the Pennyroyal Plateau and the Ohio River, but is part of the Illinois Basin that extends into Indiana and Illinois. It is characterized by Pennsylvanian age sandstones, shales and coal. Nearly all of the counties in the area are part of the television market known as the Kentucky–Illinois–Indiana tri-state area.