NORTH COAST, Calif. – Hundreds of firefighters were on the fire lines Wednesday fighting a blaze in Mendocino County that burned several hundred acres in just a few hours.

The Pass Fire was reported shortly after noon on Wednesday on Hams Pass Road in the Hulls Mountain Area northeast of Covelo, according to Cal Fire.

By the middle of the afternoon the fire had reached 800 acres. Cal Fire's last report of the evening, at 8:30 p.m., had the fire held at that size, with 25 percent containment.

Responding along with Cal Fire were the US Forest Service and the California Department of Corrections and Rehabilitation.

Cal Fire said there were 450 personnel involved in the firefighting effort, along with 35 engines, 16 fire crews, nine air tankers, three helicopters, six dozers and seven water tenders.

No structures were threatened, and full containment is expected this Saturday, the agency reported.

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