This is the bottom locus of WSKp, which had a clay surface at the bottom. The bottom elev above is an average; the elevations of the clay surface clockwise from NE corner are 2138.483, 2138.503, 2138.613, 2138.563 in the NW. Low material density in this locus, though WSKp.1 had higher. Bones include very large fragment and also one that was enclosed in the clay surface. Macrobot sample.