Began the day today by measuring the bottom elevations of locus 03 and establishing two new loci. Locus 04 demarcates the tan slightly clayish deposit in the west corner of the trench, while the rest of the northwestern half of the interior of the room became locus 05. Locus 05 is a continuation of the dark brown silt wash deposit. In this locus, toward the northern side of the locus, we found half of a mortar and a retouched obsidian flake. Material densities are starting to pick up in this locus.