Revised and Updated: By Alan P. Garfinkel, Ph.D. December 2014 Originally published in: North American Archaeologist, Spring 2007 Edition Alan P. Garfinkel, Ph.D. Principal Archaeologist UltraSystems Environmental agarfinkel@ultrasystems.com avram1952@yahoo.com Founder and Director California Rock Art Foundation http://www.californiarockart.org http://www.dralangarfinkel.com ABSTRACT One of the more spectacular expressions of prehistoric rock art in Read More
