68 This occurrence is somewhere between 1000 and 1600 fvt. hgt. see centry p. 69. He saw the calcareous gray sandstone in the gulch beside the road to Stranberg, near the fork in the road to Flagstaff, This limestone may underlie the Supai, and maybe included by geologists in the Miss. because of the limestone nature. see p. 34. This refers to Hermit shale in the Grand Canyon.