seems evident from the general relationships that the Wolfcamp thins appreciably here as it passes the crest of this structure and also that the source of the Wolfcamp deposits here are the sandstones of the Gaptank, not Dev. cherts! PG. 23 There is no chert conglomerate and indeed scarcely any conglomerate at all. The friable Gaptank ss didn't remain pebble size very long. Collection 8/9/57/5 - in the S Western most Windgap - about 25' down on SE side. Limestone, brown-gray, very conglomeratic, 1/2" to 1" chert and limestone pebbles. This seems to be within the Wolfcamp interval. I would guess judging from the beds above and below, this is near bed 15 Section 23. [This is Section 2 (note: "2" is circled) in Memior 88.] Section 28 - SW windgap; Dugout Mt. Covered below - approximately 20' (?) above angular unconformity with Gaptank. 1) Limestone, brownish-gray weathering, very conglomeratic, see note about Collection 8/9/57/5. 12'. 2) Sandstone and siltstone, light brown, friable, 1/4" to 1/2" bedding; 25'. 3) Calcarenite, mud grayish-brown; coarse sand sizes; a few poorly preserved fusulines and other organic frags. 4'; 6" beds. PG. 24 4) Limestone, medium gray, massive, organic frag. Crinoid stems abundant; 3'. 5) Limestone, dark gray, 3" to 6" beds, 5'. 6) Limestone, light tan on weathered surface; 1' beds, very silty beds, splotches of darker brown and gray within 1 or 2 dark limestone layers, (Collection 8/9/57/6). 6'. 7) Covered, dip slope, I estimate 15' (?) to base of Hess conglomerate. The Hess Conglomerate has slumped to a point nearly even with this bed. The Wolfcamp is angularly disconformable with the Hess at this point. 10°-15°. Collection 8/9/57/7 - talus from Wolfcamp slope near the middle Windgap SW of Dugout Mt. about 100' below Hess ledge - These rocks I feel quite certain are from the Wolfcamp interval [based on color primary and general topographic relations]. PG. 25 Collection 8/9/57/8 - Outcrop about 80' below Hess ledge. This is not Gaptank as far as field relations show. I think this is the zone that Collection 8/9/57/7 were originating from. There seems to be a lot of blue-gray shale in this interval. Large Hess boulders cover the slope above. {note: illustration followed}