Source Provenance of Obsidian Artifacts from Two Sites in Southern Colorado

www.escholarship.org/uc/item/6ts9c3jq ARCHAEOLOGICAL X-RAY FLUORESCENCE SPECTROMETRY LABORATORY 8100 WYOMING BLVD., SUITE M4-158 ALBUQUERQUE, NM 87113 USA SOURCE PROVENANCE OF OBSIDIAN ARTIFACTS FROM TWO SITES IN SOUTHERN COLORADO by M. Steven Shackley, Ph.D., Director Archaeological XRF Laboratory Albuquerque, New Mexico Report Prepared for Professor Bonnie Clark University of Denver Denver, Colorado 2 December 2011 updated 7 February 2012