Crab Orchard Mountains Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Lower Pennsylvanian
 ......Crab Orchard Mountains Group
UFCrab Orchard Mountain Group
RTGeorgia
 Tennessee
SNNW Georgia and E Tennessee. Added to Thesaurus in 1989.