 As the Scottish railway network developed, the Scottish Central Railway opened its line from Castlecary, near Falkirk, to Perth in 1848.It was linked with the Caledonian Railway, giving a continuous line of railway from Carlisle, Glasgow, and London.The Scottish Midland Junction Railway (SMJR) was authorised by Parliament at the same time and opened its main line in 1848, between Perth and Forfar, connecting there with other lines to connect to Aberdeen.