A canal which became an extension of the Neath Canal.

Lord Vernon built a canal from the end of the pill at Giant's Grave on the River Neath to the Penrhiwtyn furnaces of the Raby company. Approximately 1.36 miles long, it was built between 1790 and 1795. A proposal was made around 1795 to join it by a canal 0.85 miles long to Mackworth's Canal at Melyn but it was instead purchased by the Neath company 'to be added to and made a Part of the intended extension' of the Neath Canal to Giant's Grave, widened and deepened in the process.

Derived from: C.Hadfield, 'The Canals of South Wales and the Border' (Cardiff 1967), p.63.