Wicomico Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Quarternary
 ....Pleistocene
 .....Wicomico Formation
RTSouth Carolina
 Virginia
 Florida
 North Carolina
 Maryland
 Georgia
 District of Columbia
 Delaware
SNIn Columbia Group. In Prince Georges County, Maryland, consists of coarse gravel bed at base and finer sand and silt above; color of silt ranges from yellow to drab to dirty white. Atlantic Coastal Plain from Delaware to Florida.