A firefighter walks along a large hill backfire on a wildfire burn in Big Sur, Calif., Friday, July 4, 2008. The raging blaze near Big Sur was one of more than 1,700 wildfires, mostly ignited by lightning, that have scorched more then 770 square miles and destroyed 64 structures across northern and central California since June 20, according to the California Department of Forestry and Fire Protection. (AP Photo/ Tony Avelar)