BIGHORN MOUNTAINS — The Duncan Fire, located about 3.5 miles south of the Dead Swede Campground in the Bighorn National Forest, is 100 percent contained, U.S. Forest Service officials said Thursday.

The lightning-caused fire burned less than one-half acre of timber and was reported Aug. 8. Helicopter bucket drops helped firefighters on the ground attain 100 percent containment Monday evening. Firefighters will continue to monitor the Duncan Fire until it is controlled.

The Wolf Creek Fire was declared 100 percent contained and controlled Thursday morning. The fire was reported on July 11.

Containment efforts were hindered by the steep, rocky terrain, making it very difficult and unsafe for firefighters on the ground.

Heavy helicopter water drops the first couple of days helped keep the one-acre fire from increasing in size. The lightning-caused fire was in a monitor and patrol status until Thursday morning, officials said.

No structures were threatened and no area closures were needed for either fire.

Campfires outside developed recreation sites are prohibited by partial fire restrictions, which have been in place in the Bighorn National Forest since July 29.

The fine for an abandoned campfire and campfires in unapproved areas is up to $5,000 or six months in jail. Violators can be held liable for the costs of suppressing a wildfire if the campfire escapes.