Coalmont Fm

Arkosic sandstone, conglomerate, and shale; coal in lower part; in North Park
State Colorado
Name Coalmont Fm
Geologic age Tertiary
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone > Arkose
Sedimentary > Clastic > Conglomerate
Sedimentary > Clastic > Mudstone > Shale
Minor
Sedimentary > Coal
References

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

NGMDB product
Counties Grand - Jackson - Routt