Mauch Chunk Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Mississippian
 .....Upper Mississippian
 ......Mauch Chunk Formation
RTPennsylvania
 Maryland
 West Virginia
SNPennsylvania, W Maryland and N West Virginia. Added to Thesaurus in 1985.