4 4,8 Sandstone, fine-gr top & base parts massive x-lzm; middle laminated to shaly. Commonly silty, wsths OB. 12,6 Interbedded fine-gr platy ss and shaly, silty ss, mostly light gray platy outcrop Some OB stain on joints + bedding surfac 41,8 Siltstone and sandstone, very shaly, thin plate minor argill. shaly siltsta. Like above but more shaly wsths gray to lite gray. Few ss beds 25 much as 0,5 34,0 Sandstone, fine-gr. to med t-fzbc-lzt, x-lzm. Base 1,8 med to coarse gr. Clay pellet eq). (= Horizon Dry Creek Canyon memb.) some shaly beds in locally their horizon. 36,0 Sandstone, chiefly med gr massive x lem to x bedded lower 2+4 feet coarse with 33