2.0 Shaly zone obscured by wash. 3.2 Sandstone, massive fine gr. ledge 1.6 As above, locally parting between, 11.0+ Shaly zone, obscured by wash, has interbeds brown weth sandstone one bed 217 thick about 8' above base 4.0 Sandstone fine grained, massive, double bed, weths gray + ohry Interbedded siltst, silty siltym ss. 5.0 Shaly zone, covered by wash. .8 Siltstone 10.0+ Interbedded silt, sh, mtnss. Shaly zone capped by bed of hard fine gr brown weth ss. This may be in Grenzers Transition rest of slope is obscured. Stratig. - Nameless creek gap- clay beds and 1st Glen. sand. - At gap are 4 breaks probably corresponding to main clay and 3 overlying clay beds. Clay present locally in each but appears to be consistently present only in upper 2, partic. 2nd from top. Intervening sandstones are all unusually thick. Most coalesce with selves and 1st Glencurn to N. and appear to do same to S. Thus Glen #1 is unusually thick in this area. Thruout Deer Cr-Nameless Cr hogback the main bed is cut-out, one exceptions are at the tip ends of the hogback - and possibly at AIN-48-75 (1). None of smaller clay beds come in at a mineable grade or thickness. Dakota clay - which is very near 40