Eagle Valley Fm

Siltstone, shale, and local gypsum
State Colorado
Name Eagle Valley Fm
Geologic age Pennsylvanian
Lithologic constituents
Major
Sedimentary > Clastic > Siltstone
Sedimentary > Clastic > Mudstone > Shale
Minor
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 Eagle - Garfield - Pitkin