The Forensic Crash Unit is investigating a fatal single-vehicle traffic crash in Nebo, on March 13.
Initial investigations indicate the Nissan Navara was travelling on Oxford Downs Sarina Road sometime during the morning, when it left the road and hit a tree.
Emergency crews were called around 11am before the 21-year-old Rockyview driver and sole occupant of the vehicle was declared deceased at the scene.
Anyone with information or vision that could assist investigations, is urged to contact police.
If you have information for police, contact Policelink by providing information using the online suspicious activity form 24hrs per day at www.police.qld.gov.au/reporting.
Report crime information anonymously via Crime Stoppers. Call 1800 333 000 or report online at www.crimestoppersqld.com.au.