Loc 60 Exposures on dissected SW-trending spur lying chiefly in S.E. cor SE¼ sec. 36, T.15N, R. 21 E., and NE cor. NE¼, sec 1, T.14N, R.21E., Ziebach Co. Also extension E along bluffs into SW cor SW¼ sec 31, T. 15N, R.22 E. Dewey Co. Section 1. Ties in with Loc. 61, section 1. Begins, skeleton fashion at the purplish-red conc. layer. Meets up ① 27.0± From purple-red conc. layer to scattered brown worthing cones with silty cone-in-cone jackets. This unit = unit 5 of section 1, Loc. 61. Sepioid in float about 15' from top this interval ② 14,0 Silty clay, clayey "mixed" silt, gyrostic blebs, one gyrostite band 8' from base. ③ 12.0 Silt and shale, chiefly thinly bedded to laminated silt and silty shale. Relatively little gyrostite, some vfq sand layers. At top is layer with large (up to 4'diam) bwn worth chlc. cones with silty cone-in-cone jacket. ④ 7,5 Alternating silt + shale, some vfq sandstone layers as in ③ below. 22