Service 121
Ystradgynlais – Penywern (Allt-y-Grug Estate) via Glanrhyd or Gurnos, Tesco, Farteg, Asda & Panteg
Route Points
Ystradgynlais Bus Interchange - Gurnos, Gorof Road - Glanrhyd Hospital - Tesco Ystradgynlais - Ystalyfera, Swan Inn - Asda Ystalyfera - Ystalyfera, Farteg - Asda Ystalyfera -
Godre'r-graig, Hodgson's Road
Departs from Stand 2 at Ystradgynlais Bus Interchange
Operates Mondays, Wednesdays and Fridays only excluding bank holidays, except for Good Friday