Craig Childs bears witness to rock art of the Colorado Plateau--bighorn sheep pecked behind boulders, tiny spirals in stone, human figures with upraised arms shifting with the desert light, each one a portal to the open mouth of time. With a spirit of generosity, humility, and love of the arid, intricate landscapes of the desert Southwest, Childs sets these ancient communications in context, inviting readers to look and listen deeply.