The Pier Railway crossed over the Mallaig Extension Railway of the London and North Eastern Railway to the north of Fort William Junction, which was known as Mallaig Junction at the time, crossed the A82 road at a level crossing, and then crossed the West Highland Railway.
The Pier Railway connected with the Mallaig Extension Railway of the London and North Eastern Railway to the north of Fort William Junction, formerly known as Mallaig Junction, intersected the A82 road via a level crossing point, and subsequently crossed the West Highland Railway line.