40 Grand Canyon Bas Trail (Mohe, Pal. Pap. 131 (1922). Haitab li., Permian. Engert top. {See O.P., olite & Ford Mt. mem. Bas Camps} 562' Gras cherty li., Very fon. ifonias 292' Baff and red diK sandstone 136' Alternating buff os. and li., fonig aIve into onemine sil. li. 134' 897 Coconino sandstone, Permian, Essentially clume dep., 330' Pale-buff crm-hedded os. and red 336' 350 on Hermit Trail, 550 Red Caqym, Early Tanner Trail at K 550-650. Hermit Dale, Permian 332' Deep brick red sandy ol. and os. 332 Then to E., At Tanner Canyon 75-100 feet old. Supai formation, Pennsylvanian 953 Red buff platy os. and-tuff crm-hedded ss 306' Red shale, os. and onemine crm-hedded cal., ss. 429' Red shi., reddish li., red diK ol. os. crm-hedded 208' Redwall limestone, Lower Minissippian. 570' Temple Beette li., Upper Devonian {See Botkin top. = Upper Dev.} 75 Tonto group, upper Carboniferan 1192 4014 Muezzo limestone 473' Valcett calls it Up.E. Buff onemine olK. 63' Buff cal., m. 72 Farings 261' {Agate, trithia, Poydria, Sankin} Crystled li 97 Payakhamie Bright Angel Dale 391 Valcett calls it Mid.E. Tom orl. and m. fans down 215' Ortlye chungrain, Lingwellia, Ordichonifus, totronesi. Tapeats sandstone 328' Valcett calls it (Mid.E. White crm-hedded m. 30 Chocolate m. with ol. 43 Onemine chocolate crm-hedded m. 208 --- feet unequiformity Unknown group, Grand Canyon series.