Salta–Antofagasta railway

From Wikipedia, the free encyclopedia
Jump to: navigation, search
This article is about the railway line. For the tourist passenger train service from Salta to La Polvorilla, see Tren a las Nubes.
Salta-Antofagasta (Huaytiquina)[1]
Antofagasta station building
Antofagasta station building
A cargo train at Ingeniero Maury station
A cargo train at Ingeniero Maury station
Line number: C-13 and C-14 (FA) Argentina
 ? (EFE) Chile
Line length: 941 kilometres (585 mi)[2]
Track gauge: 1,000 mm (3 ft 3 38 in) (Metre)
to Güemes (Jujuy / Tucumán)
0.0 • Salta 1,187 m
 ? • Salta Km 1134
 ? • Salta Campo Caseros
9.3 • Salta Alvarado 1,207 m
 ? • Rio Ancho
17.2 • Cerrillos 1,260 m
to Alemanía
 ? • Cerrillos Km 1156
 ? • El Pucará
30.0 • Rosario de Lerma 1,332 m
40.6 • Campo Quijano 1,520 m
 ? • Virrey Toledo 1,587 m
53.2 • El Alisal 1,806 m
zig zag of El Alisal
 ? • El Tunal (Km 1192) 2,100 m
66.5 • Chorrillos 2,111 m
zig zag of Chorrillos
 ? • Ingeniero Maury 2,358 m
91.7 • Gobernador Solá 2,556 m
 ? • Puerta Tastil 2,675 m
109.4 • Meseta 2,844 m
 ? • Tacuara 3,036 m
131.3 • Diego de Almagro 3,503 m
 ? • Incahuasi 3,553 m
156.1 • Cachiñal 3,739 m
 ? • Abra Muñano (Bomba) 4,008 m
175.0 • Muñano 3,952 m
 ? • Los Patos 3,842 m
196.3 • San Antonio de los Cobres 3,774 m
215.3 • Mina Concordia 4,144 m
217.4 • La Polvorilla 4,220 m
224.4 • La Bomba (Km 1357)
236.4 • Tocomar (Km 1368)
 ? • Domingo F. Sarmiento
262.0 • Olacapato 4,090 m
292.6 • Laguna Seca (Km 1424)
 ? • Agua Blanca (Pastos Grandes)
311.3 • Salar de Pocitos 3,600 m
347.3 • Unquillal
 ? • Salar del Diablo
373.4 • Desvío Km 1506
403.4 • Tolar Grande 3,508 m
436.6 • Taca Taca
467.0 • Vega de Arizaro
493.0 • Caipe
511.8 • Chuculaqui
 ? • Alemán Muerto
549.9 • Quebrada del Agua
571.0 • Socompa 3,876 m
Argentina / Chile
 ? • Monturaqui 3,415 m
 ? • Negrillar (?)
 ? • Neurara 3,450 m
 ? • Punta Rieles
 ? • Pan de Azucar
 ? • Imilac 3,050 m
 ? • Varillas (Zaldivar) 3,100 m
 ? • Chimborazo (Aldo Poblete)
 ? • Augusta Victoria 1,740 m
 ? • Cerro Negro
to Aguas Blancas (and Copiapó) ►
◄ to Baquedano (Arica / La Paz)
 ? • Palestina 860 m
 ? • Llanos
 ? • Lata
to Arica / La Paz (FCAB)
 ? • O'Higgins 350 m
 ? • Portezuelo
to Copiapó and Santiago
919.0 • La Negra 420 m
 ? • Antofagasta Blanca
941.0 • Antofagasta 119 m
to Mejillones

The Salta–Antofagasta railway, also named Huaytiquina,[3] is a non-electrified single track railway line that links Argentina and Chile passing through the Andes. It is a metre gauge railway with a total length of 941 km (571 in Argentina[4] and 330 in Chile), connecting the city of Salta (Argentina) to the one of Antofagasta (Chile), on the Pacific Ocean, passing through the Puna de Atacama and Atacama Desert.


The Argentine track (a brief portion -Salta-Cerrillos- of Ramal C-13, and mainly the Ramal C-14[5] Cerrillos-Socompa) is part of the Ferrocarril General Manuel Belgrano and 217 km of it are served by a touristic train named Tren a las Nubes.[6] The Chilean track (Socompa-Antofagasta) is part of the Ferrocarril de Antofagasta a Bolivia (FCAB).[7] The "Huaytiquina", along with the Transandine (Mendoza-Los Andes to Santiago, by now closed and pending reconstruction), represents the only railway link between the two countries.

With the highest point (La Polvorilla) at 4,220 metres (13,850 ft) amsl, the Huaytiquina is the fifth highest railway in the world and the third in South America.



The construction of the railway started in 1921, to connect the North of Argentina with Chile across the Andes, and to serve the borax mines of the area. The viaduct La Polvorilla, the highest of the line, was finished on 7 November 1932. The Chilean track was inaugurated in 1947 and the complete railway on 20 February 1948. The route was designed by American engineer Richard Fontaine Maury,[8] after whom one of the stations (Ingeniero Maury) has been named.

Origin of the name "Huaytiquina"[edit]

The word "Huaytiquina" is the nickname of the railway. It refers to an ancient Andean mountain pass between Argentina and Chile, located just in north of Socompa and projected as line terminus. In 1923, after a Chilean request whose rail line arrived close to Socompa, the original project was abandoned and the Argentine route diverted to the current one.[9]


Map of the "Huaytiquina" within Argentina and Chile. The track marked with blue strips is served by the Tren a las Nubes. In the right, location of the line (blue) within South America.

The line crosses the north-western side of Salta Province, serving the suburban towns around Salta of Cerrillos, Rosario de Lerma and Campo Quijano, following part of the course of the Lerma Valley. It counts two zig zags, at El Alisal and Chorrillos, and two spiral loops between Tacuara and Diego de Almagro. Entering the plateau of Meseta,[10] the railway passes near Santa Rosa de Tastil and the Pre-Inca archaeological site of Tastil.

It serves the town of San Antonio de los Cobres, in the middle of the Puna de Atacama, nearby copper mines. After the viaduct La Polvorilla, highest point of the line (4,220 m), the railway runs on the borders of Jujuy Province at Olacapato and, between Tolar Grande and Caipe, it crosses in the middle a dry lake named Salar de Arizaro. The station of Socompa, named after the Andean vulcan, is a bi-national station located between the Argentinian-Chilean frontier line.[11]

Entering the Chilean territory, the rest of the line crosses the municipal territory of Antofagasta, located in the homonymous province and region. Varillas and Augusta Victoria have a short industrial rail branches, the one of Varillas serving Escondida mine. At Palestina station, the line crosses the junction railway Baquedano-Aguas Blancas, named FF.CC. Longitudinal (owned by Ferronor), linking the lines Antofagasta-La Paz and Antofagasta-Copiapó. Descending the western slopes of the Andes and the Atacama Desert, the "Huayitquina" reaches the industrial complex and village of La Negra and, after 22 km, the Pacific Ocean in the port city of Antofagasta.

Train services[edit]

Due to the elevated presence of mineral deposits in the area of Atacama, main traffic of the line consists of freight trains transporting lithium carbonate, borax, butane, pearlite, salt, ulexite, brine etc.[12] The most famous service is the touristic sightseeing Tren a las Nubes (i.e. train to the clouds), running between Salta and La Polvorilla, a viaduct and the highest point of the line. Nowadays, apart from some suburban trains Salta-Campo Quijano, the Tren a las Nubes is the only passenger train serving the line, after the cancellation of the Tren Mixto Salta-Socompa,[13] that once linked Socompa also with Tucumán and Buenos Aires (Retiro Station), via Córdoba and Rosario.[14] The Chilean part of the line, also served by freight trains only, was interested by some projects for a commuter or light rail on the route running through Antofagasta.[15]


See also[edit]


External links[edit]