This July 9, 2011, image provided by Los Alamos National Laboratory shows a tractor removing sediment from behind a weir in Los Alamos Canyon in preparation for flooding that is expected when summer ... more 
This July 9, 2011, image provided by Los Alamos National Laboratory shows a tractor removing sediment from behind a weir in Los Alamos Canyon in preparation for flooding that is expected when summer rains hit the burn scar left by the Las Conchas fire near Los Alamos, N.M. The fire has charred more than 232 square miles in the surrounding Jemez Mountains. (AP Photo/Courtesy of Los Alamos National Laboratory) less 
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Associated Press | Photo By Courtesy of Los Alamos National Laboratory
Tue, Jul 12, 2011 6:45 PM EDT