Photo of the Day 30 June 2008

All-American Canal, Yuma, Arizona, 2003
Photograph by George Steinmetz
The All-American Canal disappears over the horizon of the Yuma, Arizona, desert. The 80-mile (129-kilometer) canal is part of an extensive system of waterways that taps the Colorado River to irrigate hundreds of thousands of acres of farmland in southeastern California and southwestern Arizona.