FRAZIER PARK, Calif. - UPDATE: As of May 18, 2013 at 6:00 a.m., the fire has grown to 4,350 acres and is currently 70% contained.
Frazier Mountain High School was back in session Friday.
The Grand Fire started Wednesday afternoon in rugged terrain approximately two miles east of Frazier Park near Hungry Valley State Park, which will remain closed until further notice.
No structures or homes have been lost, and no injuries or damage have been reported.
The cause of the fire remains under investigation. The fire is estimated to be fully contained by May 20.
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