September 21, 2020 9:30 a.m.

Progress continues on the Thielsen Fire in the Diamond Lake Ranger District.

The latest update from the Forest Service said the fire is at 9,689 acres, with 20 percent containment. The reduction in acreage is due to more accurate mapping.

On Sunday, resources continued to construct and secure fire lines along the southern and western edges of the fire. Weather conditions allowed aerial retardant drops around the Cinnamon Butter tower and communications site.

Monday, personnel will focus on direct attack where possible, protect critical infrastructure and secure and hold the fire’s southern edge near the northern boundary of Diamond Lake. They will also continue to secure and mop up along containment lines and improve the defense of structures around the Cinnamon Butte communications tower as weather permits. Hand crews are constructing line east of Highway 138E and identifying containment opportunities for the southeastern edge of the fire.

405 people are assigned to the Thielsen Fire.