E-W aligned wall extending from eastern LOE, abutting wall 4040. Dolostone, 0.30x0.20m average size of materials, roughly finished, random coursed, wall foundation, north and south facing, whitish lime mortar with occasional small gravel inclusions.
Wall running East - West upon which wall 4027 is built. Dolostone, approx 0.30x0.20 average size of materials, roughly shaped, random coursed, wall foundation, north face visible.