For more than a century, the Northern Arapaho people have lived on the Wind River Reservation in Wyoming--the fourth largest reservation in the country. In "The Four Hills of Life, " Jeffrey D. Anderson masterfully draws together aspects of the Northern Arapahos' world--myth, language, art, ritual, identity, and history--to offer a vivid picture of a culture that has endured and changed over time. Anderson shows that Northern Arapaho unity and identity from the nineteenth century on derive primarily from a shared system of ritual practices that transmit vital cultural knowledge. He also provides an in-depth study of the problems that Euro-American society continues to impose on reservation life and of the responses of the Northern Arapahos.