21 180 Interbedded tan siltstone med grey mudstone with limonite staining at limonite centers brown - dark red weathering cones forming prominent bad on weathered slope concretion end at 130 mudstone greater than siltstone interbeds 1-3 cm -> Rhino level at 102 84 D-1 22 80 Same as above except no concretion and siltstone greater than mudstone 23 90 Lt. tan coarse silt massive A-SA Typical 24 86 Med tan mudstone grading up to lt tan Silt in 6/10 m. 25 125 Mudstone. 26 170 Siltstone massive Limonite stained at base mantles by thick rubble cap. 28