This lively overview of the archaeology of northern New Mexico's Pajarito Plateau argues that Bandelier National Monument and the Pajarito Plateau became the Southwest's most densely populated and important upland ecological preserve when the great regional society centered on Chaco Canyon collapsed in the twelfth century. Some of Chaco's survivors moved southeast to the then thinly populated Pajarito Plateau, where they were able to survive by fundamentally...