Coworkers found the body of Chico resident Joaquin Medina lying unconscious beside an ATV about 11:40 a.m.
The bizarre accident took place on a private road west of Cana Highway, off White Deer Lane.
Sheriff's deputies reached the remote location near the Tehama County line at 12:30 p.m. and pronounced Medina deceased.
According to a Sheriff's press release, the victim suffered major head trauma.
Emergency crews from Cal Fire-Butte County were initially told the accident involved a motorcycle crashing into a tree.
The California Highway Patrol responded to the accident initially, then turned the investigation over to the Coroner's Office. It wasn't immediately disclosed if the incident would be investigated by Cal-OSHA as an industrial accident.