Named as the upper member of Fox Hills Formation for exposures on upper White Owl Creek, Meade Co, SD in the Williston basin. Disconformably overlies Fairpoint Member (new) of Fox Hills. Underlies White River Group. Type section measured along Bull Creek valley from NW1/4 SW1/4 NE1/4 sec 18, T7N, R13E to SW1/4 SW1/4 NE1/4 sec 7, T7N, R13E where it is 175 ft thick. May be as much as 195 ft thick. Consists of brown and gray, silty to fine-grained sandstone, purple silty clay and clay-shale. In lower part, beds massive, cross-bedded. Clay-shale predominant in upper part. A unit of purple clay shale, green silt, and white to yellow sand and sandstone at top of member called the Enning facies. OPHIOMORPHA found locally. Columnar sections. Geologic map of eastern Meade Co. Of Late Cretaceous, Maestrichtian age.

Source: GNU records (USGS DDS-6; Denver GNULEX).