Morgan Fm and Round Valley Limestone

Morgan Fm: limestone, sandstone, and shale. In far northwest.
State Colorado
Name Morgan Fm and Round Valley Limestone
Geologic age Pennsylvanian
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Sedimentary > Carbonate > Limestone
Sedimentary > Clastic > Mudstone > Shale
References

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

NGMDB product
Counties Moffat