Officers from Central West Police District spent Tuesday conducting a large-scale search of bushland for 19-year-old Lewis Graham, who was last seen at his Orange home on Sunday.

On Sunday, Mr Graham sent a photo to a friend via social media from the entrance of Mullions Range State Forest north of Orange, and has not been contactable since.

MAP: The forest where police located the body ...

On Tuesday, police located the body of a male in the Mount Canobolas State Forest.

While the body is yet to be formally identified, police believe it is Mr Graham.

The death is not being treated as suspicious and a report will be prepared for the Coroner.

Police would like to thank the public and media for their assistance.

Police from the Central West Police District, along with PolAir, were conducting the large search of the forests for Mr Graham, who previously attended Orange High School.