The Web Fire in Butte County had grown to 130 acres Monday night.
It's burning near Web Hollow and Big Chico Creek, northeast of Chico. It was reported just after 1:00 p.m. Monday.
The fire is 10% contained. No structures are threatened. No roads are closed but drivers should be on the lookout for fire equipment entering and exiting Highway 32.
Firefighters say they're being slowed by the area's steep terrain.
One firefighter suffered moderate injuries battling the fire.