GROVELAND, CA - AUGUST 23:  Smoke from the Rim Fire hovers over a ridge with burned trees on August 23, 2013 near Groveland, California. The Rim Fire continues to burn out of control and threatens 4,500 homes outside of Yosemite National Park. Over 2,000 firefighters are battling the blaze that entered a section of Yosemite National Park overnight and is only 2 percent contained.  (Photo by Justin Sullivan/Getty Images)