RCAHMW digital photographic survey of the Manchester and Milford Railway: Cefn Blaenmerin tunnel north east entrance, taken by Brian Malaws, 20/05/2006.
Excavation for the north eastern end of the proposed Cefn Blaenmerin tunnel on the Manchester and Milford Railway. The earthworks consist of a heavily overgrown cutting into the hillside about 50m long, 8m deep and between 5m and 10m wide, about 10m south of and roughly parallel to the Nant Ceiliog. The site is shown on early Ordnance Survey maps and is marked as 'Old Quarry'. The tunnel would have been about 2.2km long; earthworks at the south western end are also extant.