Fred M. Phillips directs the hydrology program in the Department of Earth and Environmental Science at the New Mexico Institute of Mining and Technology, USA. Mary E. Black has worked as an anthropological linguist, editor/writer, and librarian for the University of Arizona and as an editor of Southwest Hydrology. She currently serves as a liaison with tribes, federal agencies, and scientists. G. Emlen Hall is a professor emeritus in the School of Law at the University of New Mexico, USA. His most recent book is High and Dry: The Texas-New Mexico Struggle for the Pecos River (UNM Press).