POLSON, Mont. (AP) — An autopsy confirmed the body of a 23-year-old Nebraska man has been recovered from a northwestern Montana river.

Lake County Undersheriff Ben Woods said Wednesday that Richard Mitchell of Minatare, Nebraska, drowned after falling into the Flathead River on May 31. Officials say Mitchell and others had continued past warning signs at a scenic overlook just below the SQK Dam on the Flathead Indian Reservation.

A fisherman spotted the body June 27, about 17 river miles (27 kilometers) from the dam.

Woods says Mitchell’s identity was confirmed due to his tattoo art.