7.28.06, We created Locus 24, which is now the area where the cluster of rocks were and as well as the surrounding area. We're taking this down a few centimeters using trowels to see what is going there, because we're completely mystified. The variety of soil lenses continues. We also have taken two of Alan's workers to assist us with Locus 22. The artifact density continues to be very low in Locus 22--even as we get deeper. We've completely removed all the rocks from Locus 24, except 3 which seem to be aligned and large.