0.2 locally. Whole weathers to brown cliff, vertical faces on jointing pattern. 22 10.0-12.0 Sandstone, irregularly bedded and interbedded with sandy silt-stn.: Beds massive fine-grained with interbedds platy, wavy streaked, much fuzg, plent of ston at top. Weather OB to reddish stain; siltier zones light grey, yellow stain, are chiefly in upper half which grades to unit above. (Thickness of this unit varies lat, increasing loc. at expense of overlying beds. 23 6.16 Siltstone clay and sandy, becomes shelly in lower part, and carb. so that locally the basal foot is a liquidic shale. At top become sandy. Weathers like a clstn- is grey, weath white. 24 2.0 Siltstone minor very fine ss, clayey hard, lower half forms little ledge locally, upper half softer with bright yellow to OB stain 39