We extended the northern limit after removing SU 5605 (white-grey layer) to the northern bedrock wall. There were several small patches of the white-grey material that we found in SU 5605 that were included deeper within this SU (5581). This northern extension of the SU appears to be a possible dump site because a high concentration of animal bones, animal teeth, and pottery (some burned) were found directly over the bedrock.
layer seems to be post-abandonment accumulation due to its silty nature