Dry Union Fm

Siltstone, sandstone, and conglomerate. Includes Wagontongue Fm (Miocene) in South Park
State Colorado
Name Dry Union Fm
Geologic age Tertiary
Lithologic constituents
Major
Sedimentary > Clastic > Siltstone
Sedimentary > Clastic > Conglomerate
Sedimentary > Clastic > Sandstone
Minor
Sedimentary > Clastic > Mudstone > Claystone
References

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

NGMDB product
Counties Chaffee - Fremont - Lake - Park - Saguache - Summit