Dr. Greg Erickson is our April speaker with a presentation on “Dstretch” Technology Leads to the Discovery of New Rock Art in Poway and Rancho Bernardo.
Native people who lived along Green Valley Creek in Rancho Bernardo and Poway produced extraordinary rock art. Named the Rancho Bernardo Style (RBS) by Ken Hedges, this type of rock art is not found anywhere else in North America. Since its discovery almost a century ago, this rock is now highly weathered and almost impossible to visualize with the naked eye. Because of this, much of the rock art has remained either unrecognized or poorly defined. Recently, a new state-of-the-art technology, termed DStretch, has enabled visualization of previously invisible images. Using DStretch, Dr. Erickson has discovered and will present a stunning array of fascinating new RBS motifs.
Dr. Erickson received a Ph.D. in Biology at the University of California, San Diego, and after completing postdoctoral training at Harvard Medical School, he joined the faculty in the Department of Reproductive Medicine at UCSD. Now retired after 30 years at UCSD, he is currently Professor Emeritus. He is a member of the American Rock Art Research Association, a docent at the Kumeyaay-Ipai Interpretive Center in Poway, and President of the San Diego Rock Art Association.