Robert F Boszhardt: 2 books

In Hidden Thunder, renowned watercolor artist Geri Schrab and archaeologist Robert "Ernie" Boszhardt give readers an up-close-and-personal look at rock art. With an eye toward preservation, Schrab and Boszhardt take you with them as they research, document, and interpret at the ancient petroglyphs...

Showcases the wealth of new research on sacred imagery found in 12 states and 4 Canadian provinces. In archaeology, rock-art—any long-lasting marking made on a natural surface—is similar to material culture (pottery and tools) because it provides a record of human activity and ideology...