Yavapai County authorities say a Seligman man is dead after the motorcycle he was riding collided with two cows on a roadway.
They say 54-year-old John Travers was declared dead at the scene of Wednesday night's crash.
County sheriff's deputies say Travers wasn't wearing a helmet and suffered severe head trauma.
Deputies had been dispatched to the collision near Route 66 in Seligman.
Witnesses recalled seeing the motorcycle rider at a bar in Seligman a couple hours earlier.
Residents in the area reported seeing the motorcycle travelling at high speed on Fort Rock Road just prior to hearing a loud crash.
Authorities say alcohol may have been a contributing factor in the fatal crash.