Richard Hobday was last seen at around 2.20pm on Sunday July, 24, on Weaddow Lane in Middleton-by-Youlgrave near Bakewell.
A spokesperson for Derbyshire Police said: “Concerns are growing for missing 58-year-old Richard Hobday.
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“He is described as white, 5ft 8ins tall with balding mousey brown hair. He was wearing jeans, boots and a long green coat.”
Anyone who has seen Richard or knows his whereabouts should call the police on 101 quoting 723 of 24 July.