What started as a complaint about illegal camping in the Bighorn Mountains last year recently resulted in a felony conviction.

On July 22, the Bighorn National Forest fielded a report about a group camping in a day use area near Sibley Lake, in Sheridan County. When U.S. Forest Service Law Enforcement Officer Jeremy Mack responded, he reportedly found several people “behind a ‘No Camping Here’ sign.” One was 31-year-old Nathan T. Gossens of Billings.

Charging documents say Gossens had a Ruger EC9s 9mm pistol holstered on his hip. That proved to be a problem when Mack learned that the Montanan was a felon, as Gossens was convicted of felony burglary in 2012.

Gossens was arrested at the scene on an apparently years-old warrant issued by the Big Horn County District Court, related to an alleged probation violation, but new trouble followed in August: The U.S. Attorney’s Office for the District of Wyoming filed a new felony charge of being a felon in possession of a firearm.

Gossens served three days in jail before being released on bond. He pleaded guilty earlier this year and was sentenced April 8.

U.S. District Judge Alan Johnson ordered Gossens to serve three years of supervised release, starting with six months of home detention. Gossens must also pay a $100 assessment and forfeit both his Ruger and some ammunition to the government.

While he generally must stay at home until the fall, exceptions are included for things like work, religious services and medical appointments.