Highland Railway
The Highland Railway was Scotland's most dramatically-placed railway, formed in 1865 from the merger of the Inverness and Perth Junction and Inverness and Aberdeen Junction companies to create a system stretching from Perth across the Grampians to Inverness and north to the extremities of the British mainland at Wick and Thurso — the most northerly railway termini in Britain. The Highland's routes crossed some of the most demanding terrain of any British railway: the Drumochter Pass at 1,484 ft above sea level, the highest point on any British main line, and the Slochd Summit at 1,315 ft imposed severe operational constraints that defined the railway's engineering and motive power throughout its existence.
The locomotive engineering at Lochgorm Works, Inverness produced one design of lasting historical significance: David Jones's Jones Goods class 4-6-0 of 1894, which was the first 4-6-0 locomotive in Britain — a wheel arrangement that would become the definitive British express and mixed-traffic type of the twentieth century in the hands of Churchward, Robinson, and Stanier. The preserved Jones Goods No. 103 is displayed at the Riverside Museum, Glasgow. The Highland's subsequent CMEs — Peter Drummond, F.G. Smith (whose River Class disaster left the railway without adequate motive power), and Christopher Cumming — worked within severe constraints of track weight, loading gauge, and limited capital.
At the 1923 Grouping the Highland became part of the London, Midland and Scottish Railway, which rapidly improved the Highland route's track standards and introduced Stanier locomotives to routes that had previously been the exclusive preserve of Highland and LMS small-engine practice. The Strathspey Railway at Aviemore preserves a section of the former Highland main line through the Cairngorms National Park.
About
The Highland Railway was a Scottish pre-grouping railway company formed on 29 June 1865 by the amalgamation of the Inverness & Perth Junction and the Inverness & Aberdeen Junction railways. Its system covered the trunk routes north of Perth, the Highland Main Line via Aviemore, the Far North Line to Wick and Thurso, and the Kyle of Lochalsh branch, and represented the most northerly British railway empire.
The Highland's geography, single-track, lightly-laid, and with severe gradients over Drumochter and Slochd summits, gave it particular operating challenges. Locomotive engineering at Lochgorm Works, Inverness, was carried out under successive Locomotive Superintendents, William Stroudley (1865–1869), David Jones (1869–1896), Peter Drummond (1896–1911), F. G. Smith (1912–1915) and Christopher Cumming (1915–1922).
David Jones's Jones Goods Class of 1894 was the first 4-6-0 in Britain and decisively settled the case for the type as the British heavy goods and mixed-traffic standard. Cumming's Clan Goods 4-6-0 of 1917 and Clan Class passenger 4-6-0 of 1919 were the company's last express designs. The first Jones Goods, No. 103, is preserved at the Riverside Museum, Glasgow.
At Grouping on 1 January 1923 the Highland became part of the LMS. The LMS rapidly upgraded the Highland route's track standards and introduced larger Stanier engines that the Highland's permanent way had previously not allowed.

