| 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 |