Police are appealing for assistance to locate Timothy Harris who was last seen at Bunnings in Greenway.

The 48-year-old is an avid bushwalker and may be driving a white 2001 Ford Falcon station wagon bearing NSW registration BA30AQ.

He is described as 182cm tall, Caucasian, with short brown hair, brown eyes and a slim build. He was last seen wearing a long-sleeved green and white checkered shirt and grey pants with visible paint splashes on them.

Police and Mr Harris' family have concerns for his wellbeing.

Anyone who may have any information that could assist police is urged to contact ACT Policing Operations on 131 444 quoting reference 6154111.