10 35 course siltstone Lt. yellow gray with yellow + gray streaks. S4 to A 11 /55 med yellow brown mudstone weathering Lt yellowish brown with limonite nodules sun visible! limonite nodule level occurring densely at 60cm, 90 cm, and 150 cm 12 64 cm laminated siltstone yellowish tan with abundant limonite nodules which form a distinct layer, interbedded mudstones more mudstone towards top - grading into 13 13 "wood silt" Loc. 8456 laterally Lt tan A-SH clean silt 254