Mesaverde Fm, undivided

In northwest and west-central: Major coal beds in lower part; Rollins Sandstone Member at base in Delta, Gunnison, and Pitkin Counties. In southwest: sandstone and shale.
State Colorado
Name Mesaverde Fm, undivided
Geologic age Cretaceous
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Minor
Sedimentary > Coal (Bed)
Sedimentary > Clastic > Mudstone > Shale
References

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

NGMDB product
Counties Archuleta - Delta - Dolores - Gunnison - Hinsdale - La Plata - Mesa - Mineral - Moffat - Montrose - Pitkin - Routt - San Miguel