| State | Colorado |
|---|---|
| Name | Morrison, Wanakah, and Entrada Fms |
| Geologic age | Jurassic |
| Lithologic constituents |
Major
Sedimentary > Clastic > Mudstone > Claystone
Sedimentary > Clastic > Mudstone
Sedimentary > Clastic > Sandstone
Minor
Sedimentary > Carbonate > Limestone
|
| 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 - Hinsdale - La Plata - Montezuma - Montrose - Ouray - San Juan - San Miguel |