A wildfire near Bishop, California, is only 20% contained, however evacuation orders have been lifted.

The Airport Fire, which started on Wednesday, has burned 4,136 acres. At one point it had threatened 150 structures, according to CalFire.

“Forward rate of progress has been stopped north of Hwy 168 and firefighters continue to construct containment lines and mop-up on the north end of the fire,” a CalFire incident report states.

Bishop has a population 3,800 and lies below the peaks of the Sierra Nevada mountain range.

More than 430 personnel, 66 engines, six air tankers and a helicopter were assigned to the fire.

The cause of the fire remained under investigation.

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