Rain during the previous night made excavation difficult for most of today. There was one small find (Ar/Ts.WSM2.5.M.01), but it turned out to be modern. Early in the day we closed out locus 4 and laid out locus immediately to the SE of it. The walls began to emerge more clearly today, and are generally in good shape. Locus 5 is proving difficult to dig because of the large amount of rock fall, especially in the southern corner.