The A635 is a main road that runs between Manchester and Doncaster running east–west through Stalybridge, Saddleworth Moor, Holmfirth, Barnsley and the Dearne Valley.The section forming the eastern part of the Mancunian Way is a motorway and is officially designated as the A635(M) though there is no road sign with this designation, and the signs at the entrance of Mancunian Way westbound show A57(M).