Cussewago Formation

Cussewago Formation
Stratigraphic range: Devonian
TypeFormation
UnderliesBedford Shale
OverliesRiceville Shale
Thicknessup to 100'
Lithology
PrimarySandstone
OtherShale
Location
RegionPennsylvania
CountryUnited States
Type section
Named forCusswago Valley
Named byWhite (1881, p. 94-96)

The Cussewago Formation is a geologic formation found Pennsylvania, Ohio and West Virginia. This formation represents a paleo-river delta containing sandstone as well as siltstone and shale.