These three arrowheads (likely made of flint or obisidian) were found in Oregon's Barren Valley as part of Lyle Hubbard's research.
Archaeological Anthropology | Biological and Physical Anthropology | Forensic Science and Technology
Hubbard, Lyle, "Barren Valley Arrowheads" (2017). Lyle Hubbard Slide Collection. Image. Submission 1.