* Below the Triassic rim capped by limestone this is a very wide and long valley probably not less than two miles to the gulch at the base of the high hill or mountains. The thickness of the Triassic beds in this valley amphithe- ater may be considerable side as one farms southward we rise and drop over many smaller escarpments of Triassic shale and sandstones. The thickness may be not less than --- ' The dip of the strata in the valley bottom continues up over a very high hill or hill if not higher than Fringe Out Mt. I could find no place on this Out exposing lower strata than those in the gulch but and certainly a plain lower or possibly Paleozoic beds can be seen. Iawson found a great fault here along the western side upraising at least 1000 feet of white coarse sandstone and a thick limestone bluff. This series may represent Carboniferous.