Their provenience, unusual forms, and exotic materials may indicate that they were intentionally cached behind the kiva wall during its construction, possibly as a dedicatory offering. Generally they are well made percussion thinned bifaces, which exhibit selective pressure retouch around their margins. Both were retouched abruptly along opposite margins on opposite faces producing a bibeveled effect. Both of these were also made from nonlocal materials, which could have originated in that area. Figure 8 Drills Stone drills have been recovered from railace Ruin in lower relative concentrations than either projectile points or bifaces.
Styles range from full bifacial artifacts.
None of the styles are unusual nor are they made from nonlocal materials. Other Flaked Stone Artifacts With the exception of the above described artifact types, few forrealized flaked stone tools have been recovered. These range from large heavy flakes with two or more irregularly spaced flake removals to small flakes with deep evenly spaced notches. These include axes, tchamahias, pecking stones, disks, and tablets. Flake Production Technology Simple, expedient flake production was being done at Wallace Ruin.