Confluence of Colorado and Gila Rivers as seen from the Space Shuttle, June 1, 1985 - Image courtesy NASA

Aerial view of the Yuma Desalting Plant, December 14, 1998 - Image courtesy U.S. Bureau of Reclamation

Route of buried pipeline carrying sludge from the Yuma Desalting Plant, April 13, 2003 - Image courtesy U.S. Bureau of Reclamation