The Caldor Fire south of Pollock Pines in El Dorado County, Calif., grew to 65,474 acres overnight Wednesday with zero containment as of Thursday morning.
The town of El Dorado, Somerset, Pleasant Valley, Fairplay, Omo Ranch and Riverton are among communities threatened. The community of Grizzly Flats was hit hard by the fire, losing a school, post office and homes.