A 73-year-old Wyoming man is dead after crashing his motorcycle near Sheridan, the highway patrol says.

The patrol says troopers were called to the scene at milepost 4.75 on Wyoming 336 around 9 p.m. Sunday, Aug. 28, after a passerby on a perpendicular county road observed the hazard lights from the motorcycle and reported the crash.

According to a crash summary, Mathew Terry was riding west when he failed to negotiate a left-hand curve, went off the right side of the road, and down a deep ravine.

Get our free mobile app

Terry, who was not wearing a helmet, was thrown from the bike and died from severe head trauma.

The crash summary did not list any possible contributing factors.

Terry is the eighth motorcyclist to die on Wyoming's highways so far this month.

Historic Eaton's Horse Drive Through Downtown Sheridan, Wyoming

The annual Eaton’s Horse Drive (each May) sees cowboys from nearby Eaton’s Ranch run their herd of around 100 head of horses through the heart of downtown Sheridan, Wyoming.

LOOK: The oldest cities in America

Though the United States doesn’t have as long of a history as some Old World countries, it still has plenty of historical charm. Stacker brings you a list of the 50 oldest cities in America.

See the Must-Drive Roads in Every State

More From 106.3 NOW FM