The anthracite coal fields of Pennsylvania are situated in the eastern part of the State, and extend about equal distances north and south of a line drawn through the middle of the State from east to west, in the counties of Carbon; Columbia, Dauphin, Lackawanna, Luzerne, Northumberland, Schuylkill, Sullivan, and Susquehanna, and known under three general divisions, viz.: Wyoming, Lehigh, and Schuylkill regions. Geologically they are divided into five well-defined fields or basins, which are again subdivided, for convenience of identification, into districts, as follows: [p.312]
Geological Fields or Basins. Local -Districts. Tade -Regions.
Northern Carbondale Wyoming
Western Northern Bernice Wyoming
Eastern Middle Green Mountain Lehigh
Southern Panther Creek Lehigh
Southern East Schuylkill Schuylkill
Western Middle East Mahanoy Schuylkill