 There is a single rail link to the Rhondda , the Rhondda Line , based around the old Taff Vale Railway which serviced both the Rhondda Fach and Rhondda Fawr . The Rhondda Line runs through the Rhondda Fawr , linking Rhondda to Cardiff Central . The railway stations that once populated the Rhondda Fach were all closed after the Beeching Axe . The railway line serves ten Rhondda stations with the villages not directly linked connected through bus services . 
