READ MOREThe year's deadliest fire, in the Redding area south of the Oregon border, grew to more than 180,000 acres but reached 53 percent containment as of Friday, forestry and fire protection officials said, according to the Redding Record Searchlight.
"Firefighters continue to build and improve containment lines, and perform building operations in more active portions of the fire," the officials said in a statement, adding that "mop-up and patrol efforts continue throughout the less active areas."
The blaze was burning into remote and rugged forest land but grass, brush and trees there are so dry from years of drought and recent heat that the potential remained for the fire to grow, state fire officials said.
Even though fire crews have made progress against the biggest blaze in California history, officials said the fire won't be fully contained until September. ■