Leadville Limestone, Gilman Sandstone, Dyer Dolomite, and Parting Fm

Parting Fm: quartzite and shale.
State Colorado
Name Leadville Limestone, Gilman Sandstone, Dyer Dolomite, and Parting Fm
Geologic age Devonian-Ordivician
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone
Sedimentary > Clastic > Sandstone
Sedimentary > Carbonate > Dolostone
Minor
Sedimentary > Clastic > Mudstone > Shale
Metamorphic > Metasedimentary > Metaclastic > Quartzite
References

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

NGMDB product
Counties Eagle - Garfield - Hinsdale - La Plata - Ouray - Rio Blanco - San Juan