Police believe a body found in a field near Ambergate Woods may be that of David Marshall who was reported missing on November 10.
The body was discovered by a dog walker on Thursday.
Mr Marshall was last seen on Wednesday, November 9, when he left his home in South Normanton to go to work in Somercotes.
His car was found parked in a layby on the road between Belper and Alderwasley on Tuesday November 15.
Extensive searches were carried out to find Mr Marshall.
The coroner has been informed of the death and attempts were being made to formally identify the body. An inquest is set to be held in due course.