Addition to Sheep Mt. Section Measuring up from top of hogback- towering sandstone. 4) 9.5 Shzle, dk gray to bl., weathers light gray, interbedded with silt, + very silty shzle. Intermittent Fe stone conc. zone about 3' above base. Base 2' obscured, some flaky gray shzle float 3) 0.4 t Siltstone, Fe impreg locally to form platy brown-weathering little hogback slope. It has "fucoidal" markings. 2) 8.5 - 9 to blchy Shzle, dk-gray silty, interbedded and interlaminated with thin beds platy, shaly siltstone. Becomes siltier toward base. 1) 0.6 t Siltstone, Fe-impreg, locally Festone, s persistent low ridge copper weathers purplish brown & appears to be uppermost Festone zone. [illegible] 15.