The campers were escorted in and out of the area.
The fire broke out last Sunday afternoon in the San Gabriel Canyon and is still burning. The blaze is 78 percent contained.
It has burned about 4,200 acres so far and full containment is not expected until Thursday.
The area remains closed to campers. Residents in the area were allowed back into their homes on Thursday.
View photos of the Williams Fire, burning in the Angeles National Forest.
