Chugwater Fm

Red sandstone, siltstone, shale, and local limestone and gypsum
State Colorado
Name Chugwater Fm
Geologic age Triassic
Lithologic constituents
Major
Sedimentary > Clastic > Siltstone
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Clastic > Sandstone
Minor
Sedimentary > Carbonate > Limestone
Incidental
Sedimentary > Chemical > Evaporite > Gypsum
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