Following two decades of excavations and research at the NAN Ranch Ruin in southwestern New Mexico, Harry Shafer offers new information and interpretations of the rise and disappearance of the ancient Mimbres culture that thrived in the area from about A.D. 600 to 1140. The NAN Ranch site gives evidence of a fascinating restructuring of Mimbres culture and society, owing to the introduction of irrigation agriculture in the late ninth century. The...