As a consequence of the decline in the popular­ity of rail travel, the passenger service on the line finished altogether when the rail motor was with­drawn on 7th September 1968 and the freight ser­vice was reduced to twice weekly. The exception to this was during the period 1967 to 1970 when the loadings from the Bauxite Mine at Mirboo North were being railed out on a daily train.

The last timetabled train ran on Tuesday 18th June 1974, however the very last train to Mirboo North ran on Thursday 27th June 1974 when Steam Locomotive J550, together with a passenger car­riage and guards van were towed to Mirboo North to be used as a static display. Steam Locomotive Y130 then collected the remaining freight wagons from the yard and after completing station work, departed for Morwell, thus ending 88 years of railway service to the towns of Yinnar, Boolarra, Darlimurla and Mirboo North. The railway was defeated by the economies of road transport.