As of Thursday evening, a wildfire, now surpassing twenty acres, is burning about three miles north of the Mount Thielsen Wilderness in Central Oregon.

Central Oregon Fire Info says the Tolo Mountain Fire is burning in “heavy fuel” and timber.

Two heavy air tankers, two single-engine air tankers and a helicopter are all supporting the effort to douse the fire. Ten smokejumpers are being joined by a crew from the Prineville IHC Hot Shots.

Persons in the area are advised to use caution.