Belgrano RailwayFerrocarril General Manuel BelgranoArgentine railwaysmetre gaugeTren a las Nubes

Belgrano Railway: The Backbone of Argentina's Metre Gauge Network

Belgrano Railway: The Backbone of Argentina's Metre Gauge Network The General Manuel Belgrano Railway (Spanish: Ferrocarril General Manuel Belgrano, or FCGMB) stands as the longest railwa...

Belgrano Railway: The Backbone of Argentina's Metre Gauge Network

The General Manuel Belgrano Railway (Spanish: Ferrocarril General Manuel Belgrano, or FCGMB) stands as the longest railway system in Argentina. Named after the distinguished military and political leader Manuel Belgrano, this extensive network utilizes a metre gauge (1,000 mm), a technical standard chosen primarily for economic reasons during its early expansion. From its central hub in Retiro to the far reaches of Jujuy, the railway has evolved from a collection of private British and French lines into a state-managed pillar of Argentine transport.

Today, the network serves a diverse range of needs, providing essential commuter rail services in the Buenos Aires metropolitan area, regional passenger transport, and critical freight logistics across the interior of the country.

Retiro station, previously owned by Córdoba Central Railway
Retiro station, previously owned by Córdoba Central Railway
: Retiro station, previously owned by Córdoba Central Railway

Key Facts

Villars, previously part of French-owned Compañía General
Villars, previously part of French-owned Compañía General
  • Gauge: 1,000 mm (metre gauge).
  • Status: Active, owned by the Government of Argentina.
  • Primary Termini: Retiro (Buenos Aires) and Jujuy.
  • Major Operators: Ferrovías (Norte line), Trenes Argentinos (Sur line and regional), and Belgrano Cargas (Freight).
  • Historical Origin: Formed in 1948 following the nationalisation of foreign-owned railways.
  • Notable Route: The "Tren a las Nubes" (Train to the Clouds) tourist service.

Historical Evolution and Nationalisation

Patricios station in 9 de Julio Partido
Patricios station in 9 de Julio Partido

Early Development

The roots of the network date back to 1876 with the Ferrocarril Central Norte, which connected Córdoba to Tucumán. As the first metre gauge line in Argentina, it set the precedent for further expansion into the North. By the early 20th century, the Argentine State Railway managed a network of 3,490 km, including the Central Norte and Argentino del Norte lines.

The Path to the Clouds

One of the most ambitious engineering feats began in 1905 with plans to access the Puna de Atacama. After decades of interruptions and political shifts, construction resumed under the direction of American engineer Richard Maury. The line finally opened in January 1948, linking Argentina and Chile at Socompa. This route featured 29 bridges, 21 tunnels, 13 viaducts, two zig-zags, and two spirals. In 1972, this extraordinary line was rebranded as the Tren a las Nubes for tourism.

Tren a las Nubes crossing La Polvorilla viaduct
Tren a las Nubes crossing La Polvorilla viaduct
: Tren a las Nubes crossing La Polvorilla viaduct

The 1948 Nationalisation

Following World War II, financial instability led British and French railway companies to sell their assets. On March 1, 1948, under President Juan Perón, the Argentine government nationalised these foreign companies, creating the Empresa de Ferrocarriles del Estado Argentino (EFEA), later known as Ferrocarriles Argentinos. The Belgrano Railway absorbed several metre gauge companies, including the Midland, Córdoba Central, and the Provincial de Santa Fe.

Railway workers laying track following re-nationalisation
Railway workers laying track following re-nationalisation
: Railway workers laying track following re-nationalisation

Regional Line Developments

Trains operated by SEFECHA in Chaco Province, 2006
Trains operated by SEFECHA in Chaco Province, 2006

The Eastern Bolivian Connection

In a strategic move to connect the Atlantic and Pacific basins, Argentina financed and built a railway to Santa Cruz in Eastern Bolivia. Despite geopolitical competition with Brazil, the Yacuiba - Santa Cruz de la Sierra branch opened in 1958, integrating Argentine rails with Bolivian and Brazilian networks.

The Decline of Provincial Lines

Over time, several regional branches faced closure. The Compañía General de Buenos Aires saw significant restructuring, with the Patricios to Victorino de la Plaza line closing in 1977. Similarly, the Ferrocarril Provincial saw its passenger services end in 1977, though its Avellaneda terminus was eventually preserved as a museum.

Avellaneda station was terminus of the line, currently a museum.
Avellaneda station was terminus of the line, currently a museum.
: Avellaneda station was terminus of the line, currently a museum.

The Santa Fe and Tucumán Hubs

In Rosario, the former Provincial de Santa Fe terminus was converted into a bus station in the late 1950s, first named "Coronel Juan D. Perón" and later "Mariano Moreno." In Tucumán, passenger traffic shifted from the original "Provincial" station to the Central Northern Railway station (El Bajo) in the late 1960s, with the former closing entirely in 1978.

Former Ferrocarril Provincial de Santa Fe terminus, currently a bus terminus
Former Ferrocarril Provincial de Santa Fe terminus, currently a bus terminus
: Former Ferrocarril Provincial de Santa Fe terminus, currently a bus terminus

Privatisation and Modern Management

Rosario Oeste station concentrated passengers traffic after French-owned railways were nationalised in 1948.
Rosario Oeste station concentrated passengers traffic after French-owned railways were nationalised in 1948.

By the 1990s, the financial crisis of Ferrocarriles Argentinos led President Carlos Menem to initiate privatisation. Long-distance passenger services were largely halted in March 1993. The network was split into different operational concessions:

  • Belgrano Norte: Granted to Ferrovías in 1994. This line saw massive investment in infrastructure and locomotives, increasing ridership from 11.8 million in 1993 to 36 million.
  • Belgrano Sur: Initially granted to the private company Metropolitano in 1994.
  • Freight Services: Managed by Belgrano Cargas, transporting oil, fuel, grains, and minerals.

Belgrano Norte line train in Grand Bourg
Belgrano Norte line train in Grand Bourg
: Belgrano Norte line train in Grand Bourg

Current Suburban Services

Tren de las Sierras railcar in Cosquín
Tren de las Sierras railcar in Cosquín

Belgrano Norte

This diesel commuter line runs from the Retiro terminus in downtown Buenos Aires to Villa Rosa in the Pilar Partido. Operated by Ferrovías, it remains one of the most successful commuter segments of the original network.

Belgrano Sur

Originating from the former British-owned Buenos Aires Midland Railway, this service operates from Puente Alsina to Aldo Bonzi, with a further branch extending from Tapiales to Marinos del Crucero Gral. Belgrano in Merlo.

Puente Alsina station
Puente Alsina station
: Puente Alsina station

Network Summary

Ganz Works railcar in Isidro Casanova, 1958
Ganz Works railcar in Isidro Casanova, 1958
Feature Details
Track Gauge 1,000 mm (Metre Gauge)
Nationalisation Date March 1, 1948
Primary Hub Retiro, Buenos Aires
Key Passenger Lines Belgrano Norte, Belgrano Sur, Tren de las Sierras
Freight Operator Belgrano Cargas
Notable Engineering La Polvorilla viaduct (Tren a las Nubes)

Frequently Asked Questions

An English Electric locomotive in Retiro
An English Electric locomotive in Retiro
Night view of Villa Adelina station
Night view of Villa Adelina station
La Polvorilla viaduct
La Polvorilla viaduct
Mercedes station building
Mercedes station building
Cosquín station
Cosquín station
Santiago del Estero building
Santiago del Estero building
Rosario (Central Córdoba) station
Rosario (Central Córdoba) station
Tucumán (Central Córdoba) station
Tucumán (Central Córdoba) station
Belgrano Sur line metropolitan train
Belgrano Sur line metropolitan train

What is the gauge of the Belgrano Railway?

The Belgrano Railway uses a 1,000 mm metre gauge, which was adopted primarily for economic reasons during the construction of the early northern lines.

What is the "Tren a las Nubes"?

The "Train to the Clouds" is a famous tourist service that operates on a high-altitude line featuring 21 tunnels and 13 viaducts, including the La Polvorilla viaduct.

Who operates the Belgrano Norte line?

The Belgrano Norte line is operated by the private company Ferrovías, which took over the concession in 1994.

When were the Argentine railways nationalised?

The foreign-owned railway companies were nationalised on March 1, 1948, under the administration of President Juan Perón.

Does the Belgrano Railway still provide freight services?

Yes, freight services are managed by Belgrano Cargas, transporting essential goods such as oil, fuel, minerals, and grains.

Which passenger services still operate in the interior of the country?

Currently, the only remaining passenger services from the original Belgrano network in the interior are the Tren de las Sierras in Córdoba Province and services in Chaco Province.