The blaze, sparked shortly after 1:30 p.M. (local time), near Bass Lake, California, prompted authorities to evacuate about 1,000 residents out of 400 homes, Sheriff's spokeswoman Erika Stuart said.
"I know 10 structures have been destroyed already," Stuart said.
The fire started off a country road between Oakhurst, a foothill community south of the entrance to Yosemite National Park, and Bass Lake and quickly grew to at least 320 acres, California Department of Forestry and Fire Protection spokesman Daniel Berlant said.
Sheriff's officials said residents of another 406 homes were being told to prepare to flee. Berlant said the blaze started in a remote area Saturday, but exploded on Sunday when it reached a canyon full of thick, dry brush.
It has burned 4 square miles , and was 10 percent contained.
