A motorcyclist was flown to a hospital in critical condition after crashing in Big Cottonwood Canyon on Sunday.

The man, whose name and age were not immediately released, was riding west in the canyon around 5:45 p.m. when a car made a U-turn in front of him, said Salt Lake County Sheriff's Lt. Jay Southam.

The motorcyclist tried to ride around the car but struck the front end and was thrown from the bike. He was not wearing a helmet and suffered severe head trauma, Southam said.