U.S. Air Force Staff Sgt. Chris Wright spreads gravel for a xeriscape design at the new Warrior Fitness Center at Nellis Air Force Base, Nev., Mar. 20, 2012. Xeriscaping is a way to conserve water by landscaping in ways that reduce or eliminate the need to use water for irrigation. Wright is a 99th Civil Engineer Squadron pavement and construction journeyman. (U.S. Air Force photo by Staff Sgt. William P.Coleman)

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Taken on March 20, 2012