Archaeological Research Facility

The 20 obsidian artifacts from a number of sites on Cabeza Prieta Wildlife Refuge were produced from three of the sources previously recovered from sites on the refuge, Los Vidrios, Sonora (20%), Los Sitios del Agua (20%), and Sauceda Mountains (55%; see Shackley 2015. 2016; Figure 1 here). As in the previous study, the assemblage suggests that the local environment was important, with connections to the north and south apparent. The large biface recovered from Playa Concha was produced from the Black Tank source in the Mount Floyd Volcanic Field in northern Arizona (Lesko 1989; Shackley 1995, 2005; see cover image here).