UPPER LAKE, Calif. – Firefighters on Monday kept a fire that began late last week in the Mendocino National Forest from growing further.

The Sanhedrin fire remained at 25 acres and 80-percent containment on Monday, according to forest spokeswoman Tamara Schmidt.

The fire began at around 7:30 p.m. Friday. Schmidt said it is burning on private land within the Mendocino National Forest, south of Little Signal Peak and east of the Sanhedrin Wilderness on the Upper Lake Ranger District.  

Firefighting resources started to be released Monday as the fire moved towards full containment and mop-up activity, Schmidt said.

Although the fire is nearing full containment, Schmidt said smoke from the fire may still be visible for the next few days along Highway 101 and to communities on the west side of the forest.

Schmidt said the cause remains under investigation.