Archaeological Research Facility

The analysis here of 71 obsidian projectile points and fragments from the Santee Greens (CA-SDI-5669) prehistoric/historic site in western San Diego County indicates production predominantly from the Obsidian Butte source in Imperial County, southeastern California with one projectile point produced from the Tinajas source in northern Baja California. Both these sources are present in Late Prehistoric contexts throughout the southern San Diego and Imperial Counties of Alta California, and northern Baja California (Panich et al. 2012, 2015, 2017; Shackley 2019a).