Six campgrounds were evacuated. The fire also briefly threatened several buildings nearby.
Fiire officials said that about 1,018 personnel are currently assigned to the fire, including six helicopters, one fixed wing aircraft, 16 dozers, 12 water tenders, 37 crews and 22 engines.
The Los Padres, Turkey Flat, Friis, Navajo, La Panza and Navajo Flats campgrounds were evacuated.
Officials said full containment is expected by Tuesday.
The cause of the fire is under investigation.
The Associated Press contributed to this report.