4.7 Siltstone, light grzy, clayey locally peppered with ferrous mous spcs. Soft, forms white clayey wash on bench btwn. ss. Becomes harder & shadier at base 2.7 Sandstone, fine gr., locally slity . Upper 0.5 to 1.0+ is locally qtzitic, massive, light-gray to yellowish-gray. grades into material below. locally has Fe pipes vertically prob. conc. only 3.2 Sandstone, fine gr., friable, mzy locally be clayey. Has softened yellow wash ferromagnous spcs. 96.0 Sandstone, massive, cross lam to cross bedded, upper 5f med gr. then 1f med with minor coarse. This is chief cliff former. Below it 18' friable, coarse qr, with some cyl stringers. Then 3± chiefly med gr. At base 13 ft mostly cyl, large shots to pea size chert & qtzite; some has coarse, clzyth.