8(cont.) this locality the variegated claystone with sandstone laggess comes in. It lenses out again by Indiza Cr. where 3rd ss sits directly on Lytle ss B.O.V-35-67 (1) Indion Creek gap shows about same section as on Rainbow Cr., with thin claybed, prob lower split main, in between 2 easternmost ss ridges. 3rd ss sits directly on Lytle ss. Fault cuts of all but Lytle south of Creek. No details of fault zone mapped. See Scotts map. Resume - Helmer Mine to cut-off Fault on Indiza Cr. Clay: - In this segment the clays in the Helmer mine [Main bed and thicker one immediately above] are intermittently exposed as far south as deep cleft cut by S. tributary of Willow Cr. in sw 1/4 sec. 19. T. 7 S., R. 68 W. Between this point [1+2 of B0V-35-65] and the Helmer mine more clay beds come in at position of 3 small beds also lower split main bed comes in. over main bed, Exposure on S. trib. of Willow Cr. is maximum development of this clay-bearing zone in this segment- and as far as known for entire stretch S. of Robersons Hopback Mine. 15.