Poison Canyon Fm

Arkosic conglomerate, sandstone, and shale
State Colorado
Name Poison Canyon Fm
Geologic age Tertiary
Lithologic constituents
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Clastic > Conglomerate (Arkosic)
Sedimentary > Clastic > Sandstone

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

NGMDB product
Counties Fremont - Huerfano - Las Animas