The fire, which began on Sunday afternoon on Highway 20 at Potter Valley Road, remained at 703 acres on Thursday evening, with containment up slightly to 93 percent, according to Cal Fire.
No structures are threatened, Cal Fire said.
Cal Fire said there was one minor firefighter injury reported on Thursday.
Firefighters are continuing to patrol the fire area and extinguish interior hot spots, Cal Fire said.
The assigned resources have been reduced over the past day. Still committed to the fire are 169 personnel, 20 engines, one water tender, four hand crews and two dozers.
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