Excavations near the Nahal Sha'al streambed (Fig. 1) exposed a massive wall aligned in a roughly north-south direction. The total length of the wall is 28 m and its width is approximately 1.5 m (Plan 1; Figs. 2, 3). The eastern side of the wall is constructed of dressed stones cemented with lime mortar, preserved in a few places to a height of six courses. The western side of the wall is irregular and was probably built up against the side of a trench or natural terrace. On the eastern side, the mortar filling the gaps between the stones is smoothed across, although the faces of the stones are not systematically plastered over. At the base of the wall, a thickening slope was constructed of lime mortar, reaching up to one meter in width. On the basis of the scant pottery finds from the mortar fill between the stones, the construction appears to date from the Late Roman period.