10 Clay out, thin to N 11 Minor silty beds come across from E 12 3 small clay in here with 3" bentonite in, silty beds below. Js base of Main clay, Clay doesn't come in till 13 13 N 22° W, 49° E. Main clay bed in here with thick - 8" - bentonite-like clay. Below this is thick 1st SS, then relatively good section down to the 3rd. SS. Above main clay thick SS with more of the small clays. Above this clayey zone of Delt present but no good clay. (See page 46 for section) 14 Crop of main bed, 1st SS with friable zone in middle part - more of 2nd shale in here than in hogback to N. 3rd SS - only upper part, also in. 'Resume' - Nameless Cr. to S.Plat Ho - B.O.V. 32-8 Clay beds - Main bed is in locally, basal bentonitic layer present and 'lower split. Latter has some highly carbonaceous plastic clay in it. Main bed of minable thickness in two or three places (red-green line on photo), next split may be thicker than main bed locally - not separable in all places. Distribution of beds is too erratic to be worth anything. One of 3 small beds in throught the northern 3/4 of hogback, not thick or good enough but continuous bench former from short distance N. of Stone quarry. All 3 beds are out in S. end of hogback. 43