Blisworth of Blisworth Junction on the line to Towcester. The ore was taken to Scunthorpe and South Wales for smelting. A few traces of all of these quarries remain mainly in the form of depressed field levels and some buildings connected with the later quarry. Lastly another limestone quarry was opened near Rectory Farm west of the Towcester Road to provide stone for use in connection with construction of the M1 motorway. This remains and is now a nature reserve. Blisworth Blisworth is a village and civil parish in the South Northamptonshire district of Northamptonshire, England. The West Coast Main Line,
Dudley Tunnel the tunnel pass through a dolerite known locally as Rowley Rag; and through Coal Measures rocks. The Netherton Tunnel follows a parallel route 1½ miles to the south east; it is much larger and has twin towpaths running through it. It was built to ease congestion in the Dudley Tunnel. Dudley Tunnel Dudley Tunnel is a canal tunnel on the Dudley Canal Line No 1, England. At about long, it is now the second longest canal tunnel on the UK canal network today. (Standedge Tunnel is the longest, at , and the Higham and Strood tunnel is now rail only).