White River Fm or Group

East: Ashy claystone and sandstone. Includes Castle Rock Conglomerate in region southeast of Denver. Northwest: Ashy claystone in North Park
State Colorado
Name White River Fm or Group
Geologic age Tertiary
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Claystone
Sedimentary > Clastic > Sandstone
Minor
Sedimentary > Clastic > Conglomerate
References

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

NGMDB product
Counties Arapahoe - Douglas - Elbert - El Paso - Jackson - Larimer - Logan - Morgan - Sedgwick - Washington - Weld