Southernmost wall of area F north equal with the wall 5173 made of opus reticulatum. This wall is associated with the reticulate wall 5302 and with the southern (unexposed) section of 5157. It is therefore part of a phase later than all the other features of area F north, which must have been covered when the wall was built.
EW wall dividing F north
N and Nw wall of Fw, terrace cut in bedrock