4. Massive SS's come up over lip, carry crest, which is broken up, and begin to peel slightly back down at 5, but do so only partially. Clay bed under crest from 4 to 5 v13 massive x-lam clay which clay? Even bedded stuff At 4 this clay is channeled out from above by rusty brn SS, just where top SS begins to peel back down hogback. 3 (cont.) Possibility #2 probably right, clay with bentonite local lens, one of 2 small clays. Clay at top 1st glenzirn just thin argill siltstone. Channeling complex this area, can't be certain of position clay bed relative to sandstones. (See 6 below) 6. Clay at top of 1st SS comes back in here for few ft thin silty. Hogback betw here and 4 on top 1st SS. ?Possibility that big bed is main clay with other the lower split, but this 17