A Cheyenne man died on Saturday morning on Wyoming Highway 210 about 13 miles east of the city, according to a news release from the Wyoming Highway Patrol.

Ronald J. Cotton, 21, was driving a pickup eastbound on the highway when he failed to negotiate a slight right-hand curve and left the highway to the south about 6 a.m., according to the news release from Patrol Sgt. David Wagener.

The pickup was over-corrected to the left, causing it to skid across both lanes of the highway and exit the road to the north. The pickup went down an embankment, tripped and rolled multiple times. Cotton was ejected during the crash as he was not wearing his seat belt.

Speed, driver inattention and possible fatigued driving are being investigated as contributing factors in the crash.

Cotton marked the 115th highway fatality in Wyoming for 2015. There were 123 fatalities during this same time period in 2014.