About Us: Evelyn & Bob
Evelyn Billo
Robert Mark, Ph.D.
Loves the out-of-doors, hiking, animals, books, flowers, and her family. Has been combining her loves for over 30 years through photography and searching out petroglyphs and pictographs in out-of-the-way places.
Physics, photography, rock art, computers, and conservation combine as favorite interests in this bookaholic vegetarian scientist. Bob was transferred from northern California to Flagstaff, Arizona a few years ago. He is retired from the USGS, and loves living among the canyons of the Colorado Plateau.
RCS: Computer science in the service of rock art research, protection, and education.