Missing bushwalker David Bush last seen in Blackheath

Police are appealing for public assistance to locate a bushwalker missing in the Blue Mountains.

David Bush, aged 74, was last seen at Evans Lookout carpark at Blackheath about 9am on Saturday, May 23.

He told family he was going for a bushwalk, however he failed to return home and has not been heard from since.

Police were alerted on Sunday and officers from Blue Mountains Police Area Command are conducting inquiries.

Police hold serious concerns for his welfare.

He is described as Caucasian appearance, about 175cm tall, with a thin build and grey hair.

He was last seen wearing black pants, black jacket and a black beanie, and was carrying a blue backpack.

Anyone with information about this incident is urged to contact Crime Stoppers: 1800 333 000 or https://nsw.crimestoppers.com.au.