Braichgoch, the largest customer of the tramway, responded by buying a steam road wagon and using that to transport its output to Machynlleth.
[3] The track remained in place until the early years of the Second World War, when it was lifted as part of the wartime scrap drives.
The first of these, proposed in 1862, would have taken the line above the east end of Tal-y-llyn Lake and over Bwlch Llyn Bach pass, before dropping down to the Tir Stynt copper mines near Cross Foxes, a total distance of 6 miles (9.7 km).
[3] The second proposal was for a line running north, then east, about a mile to reach an incline up to the Glyn Iago and Ty'n y Ceunant quarries on the slopes of Tarren y Gesail.
While the main line continued to rise gently as it headed towards Corris, the tramway ascended more steeply, running beside the Machynlleth to Dolgellau road.
As the tramway passed between the locomotive shed and the road, there was a siding used to store empty wagons waiting to return to the quarries.
This tunnel was too low and narrow to allow steam locomotives to enter, and was the main reason the tramway was horse-worked for its entire existence.
The tramway proper continued to climb and passed to the south of the Braichgoch quarry office and reached the level of the road.
The tramway continued, finishing the long curve to run almost due west and enter the village of Corris Uchaf.
The tramway continued on northwest for another 200 yards (180 m), passing behind the village post office to a slate enamelling works.
A branch of the tramway crossed the river near the terminus in Corris Uchaf, and ended at the foot of a long incline up to the quarry mill level.
No formal passenger services were ever run on the tramway, although there is some evidence that the company may have charged people to ride in slate waggons along the route.