ridge at this point. 6 Base of first sandstone with bentonite clay second shale as in (2). 7 Lytle - Morrison contact. Medium grained, hard to friable, iron spotted, tan ss. with clay pellet bands, resting on green claystone. 8 Disconformity? White fine grained friable sandstone below brown platy ss beds. 9 Base of main clay bed with bentonite 3 little beds above still present - possible section just south. To the north clay bed not mined except at north end and 1/2 solid strip on photograph. There clay only mined from below. 10 Dakota - Graneros contact - (Trans. in Dakota) 11 Base of Lytle as in # 7 12 Base of Morrison? See sample 13 Base of first sandstone (bentonite as in 2) strike NAO W, dip 50 E 14 Lower split off main bed - not mined 2.