The railway ran along the shore of the loch from a boat house at Caspian.
The railway was built as a transportation system for the estate and as a garden toy for the estate's 17th Laird George Livingston-Campbell-Callander. A single steam locomotive operated the line; rolling stock consisted of an open passenger carriage and several wagons.
The railway was dismantled around 1900 and the equipment sold. The boiler from the locomotive was still in situ on the beach at Tayvallich on Loch Sween until the early 1950s.