Quarry cut into the bedrock to unknown depth. It was partially filled with rubble/quarry debris when wall SU363 was constructed. At that point, the quarry cut also served as a foundation trench for wall SU363. Northern half of cut is directly into bedrock, while southern half of cut was identified by a yellow/compact sediment (SU389). N, S & W limits of cut lie outside the area of excavation. Only the E edge excavated and documented. Base of cut not exposed. E edge extends southwards into Area B (SU1116).