Casper Fm and Lower part of Fountain Fm

Casper Fm: sandstone
State Colorado
Name Casper Fm and Lower part of Fountain Fm
Geologic age Permian-Pennsylvanian
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone > Arkose
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Conglomerate
References

Tweto, Ogden, 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000.

NGMDB product
Counties Larimer