Am cleaned the remainders of Loci 9 and 15 in AC4. found some rough drains in the floor stones. the stone floor/channel is much rougher and slopier, worse preserved in this trench than in AC2.
Finished the plan of AC3.
Drew west profile and plan of AC4.
Used total station to shoot in AC3, AC4 features and unsurveyed features (floors) in AC1 and AC2.