Perth and Dundee), formed in 1845 Scottish North Eastern Railway (to Aberdeen) Wishaw and Coltness Railway Independent Lines operated by the Caledonian Railway Callander and Oban Railway opened 1 July 1880 Killin Railway, opened 13 March 1886 Lanarkshire and Ayrshire Railway opened 1888 Glasgow and South Western Railway (title assumed 1850) Glasgow and South Western Railway became part of the London, Midland and Scottish Railway on 1 January 1923 under the Railways Act 1921. Ardrossan and Johnstone Railway opened 6 November 1831; became the dual-tracked Ardrossan Railway on 23 July 1840 Bridge of Weir Railway opened 1864 Glasgow and Paisley Joint Railway opened 12 August 1840. Glasgow, Paisley, Kilmarnock and Ayr Railway opened 12 August 1840 Glasgow, Barrhead and Kilmarnock Joint Railway opened 29 September 1848 Greenock and Ayrshire Railway opened 23 December 1869 Kilmarnock and Troon Railway: First railway in Scotland authorised by Act of Parliament, opened 6 July 1812; originally worked by horses, converted to steam operation in 1817 Maidens and Dunure Railway opened 17 May 1906 Paisley and Renfrew Railway opened 21 July 1835; Scotch gauge railway originally locomotive hauled, then down graded to horse operation. Reopened as dual track, standard gauge, line 1 May 1866. Great North of Scotland Railway (incorporated 1845) Great North of Scotland Railway became part of the London and North Eastern Railway on 1 January 1923 under the Railways Act 1921. Aberdeen and Turriff Railway Alford Valley Railway built 1859 Banffshire Railway Banff, Macduff and Turriff Extension Railway Banff, Portsoy and Strathisla Railway Deeside Railway Deeside Extension Railway Formartine and Buchan Railway Inverury and Old Meldrum Junction Railway Keith and Dufftown Railway Morayshire Railway opened 10 August 1852 Strathspey Railway Highland Railway (title assumed 1865) Highland Railway became part of the London, Midland and Scottish Railway on 1 January 1923 under the Railways Act 1921. Dingwall and Skye Railway opened 19 August 1870 Duke of Sutherland's Railway opened 19 June 1871 Findhorn Railway opened 18 April 1859 Inverness and Aberdeen Junction Railway opened 18 August 1858 Inverness and Nairn Railway (INR) opened 5 November 1855 Inverness and Perth Junction Railway opened 9 September 1863 Inverness and Ross-shire Railway opened 23 March 1863 Nairn and Keith Railway opened 1858 amalgamated with INR 1861 Perth and Dunkeld Railway opened 7 April 1856 Sutherland Railway opened 13 April 1868 Sutherland and Caithness Railway opened 28 July 1874 Wick and Lybster Railway North British Railway (incorporated