Rocky Mountain House RCMP say they received a report of a possible drowning in the Clearwater River in Clearwater County.
Witnesses observed a male wearing a life jacket floating in the turbulent river Sunday, but they were unable to make contact with him, so they called police.
The man was last seen in the water approximately 28 miles west of the Clearwater Bridge near Highway 22 and Highway 591.
Police located a vehicle and boat trailer near the area and have not been able to contact the 34-year-old registered owner from Calgary.
Police believe the owner of the vehicle and trailer is the same male that was observed in the water.