7/8/06 Groundstone metate, likely only a portion. Flat on one side, sightly worked on the other. The grinding surface is cur bue to the flat fracture, snap on one end. The grinding surface retains a curved form. Light amounts (10%) of white corrosion fill the basaltitic pores as well as cover the flat areas of all surfaces. Was positioned half in locus E624 and half in E634, two loci of the same pit.