Skyscrapers in downtown Denver are obscured by smoke drifting down from fires in Wyoming, eastern Montana and western South Dakota on Wednesday, July 4, 2012. While the wildfires are contained in ... more 
Skyscrapers in downtown Denver are obscured by smoke drifting down from fires in Wyoming, eastern Montana and western South Dakota on Wednesday, July 4, 2012. While the wildfires are contained in Colorado, states to the north are facing an uphill battle as blazes burn unabated within their borders on Independence Day. (AP Photo/David Zalubowski) less 
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Associated Press | Photo By David Zalubowski
Wed, Jul 4, 2012 6:25 PM EDT