White River Formation - Brule Member

Pale-pink to white blocky tuffaceous claystone and lenticular sandstone. Locally includes the Upper Conglomerate Member (Twru).
State Wyoming
Name White River Formation - Brule Member
Geologic age Oligocene
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone (Lens)
Sedimentary > Clastic > Mudstone > Claystone (Tuffaceous)
Minor
Sedimentary > Clastic > Conglomerate
References
NGMDB product
Counties Goshen - Laramie - Platte