7.8.06, Half day. There has been a hole dug overnight. It is approx. 35 cm deep and at its widest diameter, 55cm. In the S corner of Locus 8 we also found some kind of large piece of plastic, or a tire or burlap. It seems locus 8 is very disturbed because there are also many rodent burrows. We may have hit sterile clay in the NW corner of Locus 6. The architecture continues to puzzle us.