The Big Horn County Coroner says 29-year-old Kelsey Birdinground died Saturday night from injuries caused by the crash. According to the Montana Highway Patrol, Birdinground was driving North on Secondary Highway 451, South of Wyola, near mile marker 30.8. It's there her car drifted off of the road, skid counter-clockwise and rolled. The car then crossed the west side of the highway into a ditch and the driver was ejected. Troopers say alcohol is a contributing factor. There were no passengers.