La Trochita (official name: Viejo Expreso Patagónico), in English known as the Old Patagonian Express, is a narrow gauge railway in Patagonia, Argentina using steam locomotives. The nickname La Trochita means literally "The little gauge" though it is sometimes translated as "The Little Narrow Gauge" in Spanish while "trocha estrecha", "trocha angosta" in Argentina, is often used for a generic description of "narrow gauge."
The Trochita railway is 402 km in length and runs through the foothills of the Andes between Esquel and El Maitén in Chubut Province and Ingeniero Jacobacci in Río Negro Province, originally it was part of Ferrocarriles Patagónicos, a network of railways in southern Argentina. Nowadays, with its original character largely unchanged, it operates as a heritage railway and was made internationally famous by the 1978 Paul Theroux book The Old Patagonian Express, which described it as the railway almost at the end of the world. Theroux had sought to ride trains as far as possible into southern Argentina but did not include in his adventures the several railroads which were further south than Esquel, presumably because they were not considered operational or with sufficient connection to larger lines.
History
Plans
In 1908, the Government of Argentina planned a network of railways across Patagonia. Two main lines would join San Carlos de Bariloche in the central Andes with the sea ports of San Antonio Oeste on the Atlantic coast to the east, and Puerto Deseado on the coast to the south east. Branches were to be built to connect the mainline with Buenos Aires Lake (connecting at Las Heras) and Comodoro Rivadavia (connecting at Sarmiento). Colonia 16 de Octubre – the Esquel and Trevelin area – would be connected via a branch line to Ingeniero Jacobacci. The whole network would connect to Buenos Aires via San Antonio Oeste.
The project ran out of steam following ministerial changes and the start of World War I which affected the economy of Argentina and the input of technology and investment required from Europe. The northern main line from the coast reached Ingeniero Jacobacci in 1916. 282 km of the southern main line from Deseado to Las Heras, and the 197 km branch line from Comodoro Rivadavia to Sarmiento were laid, but never connected with each other or the northern network. After 1916, the only further work was the completion of the link from Jacobacci to Bariloche, finished in 1934.
Esquel line
The exception was the Esquel line. After the end of the First World War, narrow gauge track and facilities were plentiful and cheaper, given their extensive use at the front for supplies and troop movement. Decauville railroads were used extensively in Buenos Aires Province in rural areas and to carry freight. For passenger services, locomotives for track were readily available and it was decided to pursue this cheaper option. In 1921 it was agreed to lay down the Jacobacci-Esquel line, and also to connect it with the existing private gauge railway in the Chubut Valley from Dolavon to Puerto Madryn. This would be the Patagonian Light Railways Network.
Belgian coaches and freight wagons were ordered in 1922, plus fifty locomotives from Henschel & Sohn, a German company in Cassel (today spelt Kassel). Later 25 more locomotives were bought from the Baldwin Locomotive Works in Philadelphia, U.S.A.
The first part of the project was to lay a third rail inside the existing tracks at Jacobacci and the Chubut Valley so that they could be used by the narrow gauge vehicles. New tracks were laid to extend the Chubut Valley line from Trelew to Rawson at the coast and westwards to Las Plumas. After floods destroyed much of the line in 1931–1932, work began again in 1934 with new plans, with a 105 m-long bridge and a 110 m-long tunnel to be built. 1,000 labourers worked in the harsh Patagonian environment, many later settling.
Trains began to run on the completed parts of the line in 1935. In 1941 the line reached El Maitén, where maintenance facilities were built. The first train to Esquel entered the city on May 25, 1945. After President Juan Perón's nationalisation of the railway network in 1948, the Trochita became part of General Roca Railway.