
A slurry bomber paints an area in the Boulder Heights section of the Fourmile Canyon Fire near Boulder, Colorado, 09 September 2010. Officials said Thursday at least 169 homes have been destroyed in the fire, making it the most destructive in Colorado history in terms of homes lost. EPA/RICK GIASE

A slurry bomber paints an area in the Boulder Heights section of the Fourmile Canyon Fire near Boulder, Colorado, 09 September 2010. Officials said Thursday at least 169 homes have been destroyed in the fire, making it the most destructive in Colorado history in terms of homes lost. EPA/RICK GIASE

A helicopter douses hot spots around surviving structures in the Fourmile Canyon Fire area near Boulder, Colorado, 09 September 2010. Officials said Thursday at least 169 homes have been destroyed in the fire, making it the most destructive in Colorado history in terms of homes lost. EPA/RICK GIASE

A slurry bomber paints an area in the Boulder Heights section of the Fourmile Canyon Fire near Boulder, Colorado, 09 September 2010. Officials said Thursday at least 169 homes have been destroyed in the fire, making it the most destructive in Colorado history in terms of homes lost. EPA/RICK GIASE

Colorado Springs firefighter Steve Wilch checks the wind and relative humidity from an observation point above the Fourmile Canyon Fire near Boulder, Colorado, 09 September 2010. Winds expected to reach 60 mph Thursday forced authorities to call off plans to allow Fourmile Fire evacuees to return to their homes. Hundreds of residents were allowed to return home earlier in the day to retrieve pets and other belongings. The new evacuation order required them to be out by 2:00 p.m. Officials said Thursday at least 169 homes have been destroyed in the fire, making it the most destructive in Colorado history in terms of homes lost. EPA/RICK GIASE

A helicopter searches for hot spots around a surviving structure in the Fourmile Canyon Fire area near Boulder, Colorado, 09 September 2010. Officials said Thursday at least 169 homes have been destroyed in the fire, making it the most destructive in Colorado history in terms of homes lost. EPA/RICK GIASE

Frich Zwiebel removes belongings from his house in the Boulder Heights area of the Fourmile Canyon Fire Boulder, Colorado, 09 September 2010. Winds expected to reach 60 mph Thursday forced authorities to call off plans to allow Fourmile Fire evacuees to return to their homes. Hundreds of residents were allowed to return home earlier in the day to retrieve pets and other belongings. The new evacuation order required them to be out by 2:00 p.m. Officials said Thursday at least 169 homes have been destroyed in the fire, making it the most destructive in Colorado history in terms of homes lost. EPA/RICK GIASE

A surviving structure sits on a charred hillside in the Fourmile Canyon Fire area near Boulder, Colorado, 09 September 2010. Officials said Thursday at least 169 homes have been destroyed in the fire, making it the most destructive in Colorado history in terms of homes lost. EPA/RICK GIASE