Archaeological Research Facility

The analysis here of 6 obsidian artifacts from the Early Agricultural Las Capas site in the Santa Cruz River basin in Tucson, Arizona indicates a diverse provenance assemblage with sources all from one of the major Mogollon-Datil Volcanic Province sources in western New Mexico and eastern Arizona - Cow Canyon eastern Arizona, and Antelope Creek and North Sawmill Creek at Mule Creek, western New Mexico (Shackley 2005; Shackley et al. 2018). While the sample sizes are quite different, this obsidian provenance assemblage is quite different from the nearby and mainly contemporaneous Los Pozos that exhibited an obsidian provenance assemblage from all cardinal directions