Journal of California and Great Basin Anthropology

The recent DPR investigations have been directed toward a better understanding of the Annadel prehistoric archaeological record. One goal of this work has been to delineate the boundaries of the park's primary obsidian source (i.e., the "Annadel" source). Special attention has also been given to x-ray fluorescence spectrography and obsidian hydration studies. These studies have helped to better illustrate the chemical variability of the local obsidian, and to better define the local chronological sequence (Origer 1982; Origer and Wickstrom 1982). Perhaps the most interesting survey finding has been the tentative identification of a previously undetected obsidian source occurring within and adjacent to the park. This paper is a brief discussion of these recent findings.