The first line to collieries at Gwaun-cae-Gurwen similarly involved difficult incline operation, and the GWR obtained an Act in 1904 authorising a new line avoiding the inclined plane. It opened on 4 November 1907; it had a 1 in 40 ruling gradient. Two halts were opened on the new line, and railmotors operated a passenger service from 1 January 1908 to 1 May 1926. There were eight trips a day. The passenger service was suspended during the General Strike of 1926 and never resumed. The earlier line was shortened back in 1933, becoming known as the Cawdor branch, and was later used chiefly for wagon storage.