Jeff has been involved in rock art research for over 25 years and has visited rock art on all 6 continents that have rock art. He has authored several publications and given numerous presentations on rock art related subjects.
By day, Jeff is an environmental attorney in San Diego, but he spends virtually all of his other time focused on rock art. He has also been involved with rock art documentation and site monitoring in the United States, Australia and Africa, including helping with projects for the Bureau of Land Management, the U.S. Forest Service, Archeoimagery, and CASSP.
In recent years, Jeff has focused on rock art photography and he won the 2017 Oliver Award from the American Rock Art Research Association for "Excellence in the Art & Science of Rock Art Photography.” He is currently working on a book about rock art around the world.