A resident from Clear Creek Pines near Happy Jack died Monday on Highway 87 south of Strawberry after losing control of his vehicle.
Department of Public Safety Officer John Whetten said Warren Lee Mathieson, 84, died at the scene of the accident at about 5:15 p.m.
Mathieson was driving southbound on Highway 87 from Strawberry when he ran off the right side of the road, overcorrected and rolled the vehicle.
Whetten said Mathieson was partially ejected and that the car rolled on top of him.
Mathieson's dog was with him at the time of the accident and survived.