“USDA Forest Service officials on the Mendocino National Forest are deeply saddened to confirm the death of a firefighter on the August Complex,” the agency said in a news release.
The second firefighter is getting treatment, according to the USFS. No further details were released.
Many have been contained or have merged, according to the agency.
As of Monday evening, the fire has consumed 236,288 acres with 20% containment, according to the USFS.
The Forest Service said the blaze was burning in chaparral, timber, and tall grass.
After a weak cold front moved through the area, slightly above-normal temperatures along with dry conditions are expected on Tuesday. A light wind may also impact fire containment efforts.
Cal Fire said Tuesday that the LNU Lightning Complex fires that have burned 375,209 acres are now 66% contained, while the SCU Lightning Complex fires that have scorched 383,157 acres are 65% contained.
After the lightning storms sparked the blazes, more than 1 million acres have burned and seven deaths statewide have been attributed to the blazes.
The LNU Lightning Complex near Santa Rosa and the SCU Lightning Complex near San Jose grew to become the second and third largest fires by acreage in state history.
Nearly 2,800 firefighters are battling the blazes in the northern part of the state.
The Associated Press contributed to this report.