Pocahontas Formation

(part of Pottsville Group) - sandstone, approx. 50%, with some shale, siltstone, and coal. Extends from the top of the Flattop Mountain Sandstone to the top of the Mississippian. Includes from bottom upward Pocahontas coals Nos. 1 through 7.
State West Virginia
Name Pocahontas Formation
Geologic age Pennsylvanian
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Minor
Sedimentary > Coal
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Clastic > Siltstone
Comments Thickness: Southeastern 450-720 ft
References

Cardwell, D.H., Erwin, R.B., and Woodward, H.P., 1968 (slightly revised 1986), Geologic Map of West Virginia: West Virginia Geological and Economic Survey, Map 1, East Sheet, scale 1:250,000.

NGMDB product
Counties Fayette - Greenbrier - McDowell - Mercer - Pocahontas - Raleigh - Summers - Wyoming