Dowlais Iron Co's railway: Jcn.85502/85503 (SO08950761) - Raslas Pit (SO09180747); Ordnance Survey six-inch Second Edition map (1901). Extended and incorporated into the Pant-y-waun Mineral Railway. The site was destroyed in twentith-century land reclamation.
Recorded as part of RCAHMW Uplands Initiative Project, W B Horton, H & H, 17/09/2013.