Bill Broyles

Bill Broyles is the author of Organ Pipe Cactus National Monument: Where Edges Meet and Our Sonoran Desert, and co-editor of Dry Borders: Great Natural Reserves of the Sonoran Desert. Thomas E. Sheridan holds a joint appointment as professor of Anthropology at the Southwest Center and the Department of Anthropology at the University of Arizona. A MacArthur Fellow and recipient of a Lifetime Achievement Award from the Society for Conservation Biology, Gary Paul Nabhan is Director of the Center for Sustainable Environments at Northern Arizona University. Mary Charlotte Thurtle was the field director for the Tinajas Altas Archaeological Survey in 1998.