Coll. 8/11/57/11 - This bed is dipping slightly toward the town of Marathon, not a good exposure, but believe this is Gaptank shined over Haymond onto Dimple. The diagram on page 151 shows 2 beds by thickening + thinning. This is really caused by a fault - bearing the NE side about 60 to 70° with respect to the SW side. The thickening and thinning of the three limestones I'm sure does take place but perhaps not on the order of magnitude pictured on page 151. Sullivan The Dickard Canyon fault cuts the NE end of the Decie (Denver) Hills. The lower Leonard is ex cropped on the NE side to a point below the Three Sockinella reef. The picture was confused by several unrelated or related fault blocks, in parallel to main fault system. Just SW Windfall in line with the Dickard Canyon fault, there is evidence of a fault - the NE side has black shist (James or Dimple) faulted against above? or gaptank orange-brown sandstone. The amount of cover NW of the place section 20 was examined observes the geologic relationships. I believe the angle of the lower Wolfcamp is missing in part and pinches out completely over a couple of Haymond and Dimple (Welfcampia) beds. The evidence is slightly negative because what I believe is Gaptank sandstone (orange-brown) has no conformable cover. The Haymond clay+ sandstones are exposed very close to the lower vacchini clays of and no single exposure typical of the lower Wolfcamp. These faults according to P. King's map line up fairly well with the 3 that flank the NE end of Cathedral Mt. He maps the black shist as Ord. marathen "V unit." The orange-brown beds as gaptank they look much like some of the blackish shales in the Eldershots zone, however. The Dimple shists are present in great abundance in the conformable (e.g. sample 8/11/57/1) which may represent the lower or basal portion of the Wolfcamp.