sand not exceeding 0.2 in thickness. At 11.0 from base 100 bentonitic sh, some scrlth, redwartz cones, chiefly at about 12.5 and 16.5 from base (7) 20.0 Bzded beds, unit with thicker silts + finess than those below, though shaly predominates. Bzding marked. At base 0.4 silt-sand layer, others follow (up) as - 1.2 to 1.6 5.1 to 5.4 7.8 to 8.2 10.5 to 11.8+ (channels locally, else splits bc) 13.9 to 14.2 15.5 to 15.9 18.5 to 19.0 From 16.5 - 16.9 also z silt with 0.4 on top of finely lam. silt and czrb partings some chunks charcoal. At top, upper 1.0 is light gray bentonitic cly, wartzus light gray, (8) Sand with lzqo cones. Section (2) - Beginning base sandstone of unit (3), section 1. Although details of bzded beds in unit (7) change drastically, the base of the sand can be traced (locally without question and apparently does very little channeling. (9) 20.0+ sand, vfg, claygy+10%, graywacke, wartz light gray, fluted, local white wartz, cone masses in form tabular, but also in one 48