Police are investigating a fatal crash in Michelago, about 50km south of Canberra.
About 5pm yesterday, a 53-year-old man rode his quad bike from his property on Tinderry Road.
Officers attached to Monaro Local Area Command were contacted about 6.30pm, after he was found lying on the roadway.
The quad bike was located overturned nearby.
NSW Ambulance Paramedics attempted to treat the man; however, he died at the scene.
A crime scene was established at the location and examined by specialist forensic officers and detectives.
While inquiries into the matter are continuing, police do not believe any other vehicle was involved in the incident.
A report will be prepared for the information of the Coroner.
Police are urging anyone with information in relation to this incident to call Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page: https://nsw.crimestoppers.com.au/ Information you provide will be treated in the strictest of confidence. Police remind readers they should not report crime information via Facebook and Twitter pages.