In 1980, this ancient rock art was vandalized. The National Park Service cleaned the panel, and restoration work revealed older pictographs beneath the white shields. While the original brilliant pigments are gone forever, their absence provided an opportunity to use new technologies to gather additional information about the panel. In 2008, as part of the Multi-Spectral Imaging Project, the panel was photographed in the infrared spectrum, and a comparison with a regular photograph revealed figures not previously visible to the naked eye. Archeologists are using this exciting information to establish a new baseline from which to monitor change in the panel and analyze the order in which individual elements were painted.
