CHEYENNE, Wyo. (AP) — A Cheyenne man has died while camping at Glendo State Park.

State parks officials say another camper discovered 60-year-old Lonnie Harold Hauf unconscious along a roadside at around 7 a.m. Monday.

Attempts to resuscitate Hauf were unsuccessful.

Hauf was last seen at around 10 p.m. Sunday when his group of campers went to bed. State officials suspect Hauf died of natural causes after he got up early to go for a walk.

He was found about 100 yards from his campsite.