White River Formation

White to pale-pink blocky tuffaceous claystone and lenticular arkosic conglomerate.
State Wyoming
Name White River Formation
Geologic age Oligocene
Lithologic constituents
Major
Sedimentary > Clastic > Conglomerate (Arkosic)
Sedimentary > Clastic > Mudstone > Claystone (Tuffaceous)
Comments White River is also included in Tmo
References
NGMDB product
Counties Albany - Big Horn - Campbell - Carbon - Converse - Crook - Fremont - Goshen - Johnson - Laramie - Natrona - Niobrara - Platte - Sheridan - Sweetwater - Washakie