Cut into chocolate levelling layer 15063. Continues underneath 15032. Appears to be circular in plan-hence cannot be a foundation trench for any of the walls in this area. Very likely abuts wall 15042, but impossible to see as wall 15032 built on top
View toward the north; rounded cut SU 15069 filled by SU 15068; cut into SU 15063 and may abut wall SU 15042 (?)