Vermejo Fm and Trinidad Sandstone

Shale, sandstone, and major coal beds; sandstone
State Colorado
Name Vermejo Fm and Trinidad Sandstone
Geologic age Cretaceous
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Mudstone > Shale
Minor
Sedimentary > Coal (Bed)
References

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

NGMDB product
Counties Fremont - Huerfano - Las Animas