SECTION 8231 Morales I Hill 370 m E., 1260 m N. of SW Corner, Sec. 1, T. 20 N., R. 35 E., Garfield County, Montana. Unit Thickness 3 3.2 Top of Section 2.65 Shale: fissile, dark brown grey, carbonaceous .55 2.01 Shale: fissile, yellow brown, carbonaceous, with poor plant fragments. .64 2 Sandstone: very fine grained, clayey, friable, subangular, brownish grey with carbon stains and blebs, some limonite, apparent down cutting relations. Some carbonaceous laminae in top decimeter. Large punky carbon blebs. 1.8 shell beds with carbon masses, inferred to be roots or logs. .63 1 0 Mudstone: massive, olive drab, with rare plant fragments. 1.38 Base of section on flat in front of hill.