a blacksmith's shop. There was also a locomotive shed and a control office, while close by were huts to accommodate 700 men. The Upper Works Railway started near the control office. This arrangement lasted until about 1939. When the new Pier Railway was built, it turned to the east at the end of the double track section from the pier, and crossed the Fort William line to the south of Mallaig Junction. A small section of the A82 road was diverted further to the west, to allow the railway to cross it on a bridge and then follow it until it turned to the east just before the road crossed over the West Highland line. As it approached the factory, it passed a compound for storing aluminium ingots, and the carbon factory which was built in 1937. A new shed for steam locomotives was built next to carbon factory in 1958, to replace one close to the main factory. The Upper Works Railway then started at the south-west corner of the factory, and ran along the south side of the factory. The pier railway was used for the delivery of alumina to the works and the despatch of finished aluminium ingots, which were shipped to Runcorn on the Manchester Ship Canal. Construction of the permanent pier railway commenced in 1927. The bridge that crossed the West Highland Railway is still extant, although the embankment leading to it on the eastern side was removed in 2019. It had been the intention that the permanent pier railway would be worked by electric traction, supplied by overhead lines, but this was never implemented. In addition, the bridges and embankments were built wide enough for double track, but only the first section from the pier was doubled, and the rest remained single track throughout its life. Upper Works Railway The Upper Works Railway was by far the longest part of the rail system, running for some from base camp to the valve shafts located by Loch Treig. The line from the original Pier Railway terminus and that from the new Pier Railway met to the east of the factory. Just before the junction, the new line crossed the downfall pipes D and E on bridge 53, and pipes A, B and C on bridge 52. Between the bridges was the junction with the Portals branch, with twin inclines running besides both sets of pipes