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Mineral Resources > Online Spatial Data > Geology > by state > Colorado

Dry Union Fm

Siltstone, sandstone, and conglomerate. Includes Wagontongue Fm (Miocene) in South Park
StateColorado
NameDry Union Fm
Geologic agePhanerozoic | Cenozoic | Tertiary
Original map labelTd
Primary rock typesiltstone
Secondary rock typesandstone
Other rock typesconglomerate; tuff
Lithologic constituents
Major
Sedimentary > Clastic > Conglomerate
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Siltstone
Minor
Sedimentary > Clastic > Mudstone > Claystone
Map references
Tweto, Ogden 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000.
Unit references
Tweto, Ogden 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000.
Geographic coverageChaffee - Fremont - Lake - Park - Saguache - Summit

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