This August 2012 photo shows a rock carving of a llama in Yerbas Buenas, San Pedro de Atacama, in Chile. Thousands of petroglyphs decorate these rocks. (AP Photo/Karen Schwartz)

Associated Press
This August 2012 photo shows a rock carving of a llama in Yerbas Buenas, San Pedro de Atacama, in Chile. Thousands of petroglyphs decorate these rocks. (AP Photo/Karen Schwartz)
This August 2012 photo shows a rock carving of a llama in Yerbas Buenas, San Pedro de Atacama, in Chile. Thousands of petroglyphs decorate these rocks. (AP Photo/Karen Schwartz)
View Comments (0)