Yosemite threatened by wildfire

Image #: 22803952    Large plumes of smoke from the Carstens Fire block the sun in the Sierra National Forest near Jerseydale in the Mariposa area, June 17, 2013. (Christopher Winterfeldt/Merced Sun-Star/MCT)      Merced Sun-Star/ MCT /LANDOV

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    Yosemite threatened by wildfire

Wildfire threatens hundreds of homes in California as the season is off to an early start.