Fire officials report that the Ann Arbor Fire, which is burning about seven miles south of St. Regis, is now fully contained.

The blaze was discovered on Saturday and by Sunday afternoon it had burned 15 acres of heavy timber in a remote area according to Lolo National Forest spokesman Boyd Hartwig.

Firefighters worked through the night with a small single engine air tanker and two crews to contain the blaze, Hartwig said. A Bitterroot hot shot crew and smokejumpers also responded.

Hartwig said that it appears a lightning strike started the fire. Firefighters continued working Sunday night to extinguish hot spots.

Firefighters and aircraft are responding to a ten acre lightning caused fire on the Superior Ranger District, approximately seven miles south of St. Regis.

The Ann Arbor Fire, west of Interstate 90, is burning on a steep slope, in timbered terrain.

Smoke from the fire is likely to be visible from Interstate 90 in the vicinity of St. Regis. The fire was reported to dispatchers Saturday and the following resources are currently at the fire or en route. Two crews are on the scene including Bitterroot National Forest hotshot Crew, a Type 1 helicopter, a Single Engine Air Tanker, and 1 load of Smokejumpers.

Additional resources may be committed to the fire Sunday, depending on fire behavior later Saturday and the success of suppression efforts.

On other areas of the Lolo National Forest, firefighters continue to patrol fires that were contained last week. Firefighters also responded to an abandoned campfire Saturday in the Granite Creek area about ten miles west of Lolo Hot Springs.

Fire officials are reminding the public to ensure that all campfires are completely out before leaving their campsite. A fire is considered out when it is cold to the touch.