U.S. Forest Service officials say the fire is now 92% contained after consuming 402 square miles. Full containment is expected Sunday, they added.
Fire activity continues to be limited to "isolated smoldering" within the fire containment lines, according to an incident update posted by the U.S. Forest Service.
The fire started Aug. 17, ignited by a hunter's illegal campfire, officials said. The effects of blaze are likely to be long lasting, transforming parts of the Stanislaus National Forest for decades to come.
The fire began in chaparral and flames quickly spread up canyons into higher elevations. At one point it raced through more than 30,000 acres in a single day.
Times staff writer Bettina Boxall contributed to this report.