The Gallatin County Sheriff's Office is asking for help identifying a man that apparently used a counterfeit $100 bill at Casey’s Corner in Gallatin Gateway.

According to authorities, the man appears to be in his 30s with a dirty blonde mullet.

He was driving a newer black Ford (F150 or F250) quad cab with a silver toolbox and a large black ladder-rack in the bed. The front of the pickup had a black grill guard with what appears to be a small winch on the bottom rail. License plates appear to be local MT 6 county plate.

After using the counterfeit bills, the suspect apparently left the area and headed toward Big Sky.

If you recognize him, please call 582-2100, and leave a message for Deputy Gifford.