The Argentine North Western Railway (ANW) (in Spanish: Ferrocarril Noroeste Argentino) was a British-owned railway company, founded in 1886, that operated a (metre gauge

Metre gauge

Metre gauge refers to narrow gauge railways and tramways with a track gauge of . In some African, American and Asian countries it is the main gauge. In Europe it has been used for local railways in France, Germany, and Belgium, most of which were closed down in mid 20th century. Only in Switzerland...

) railway network in the Tucumán Province

Tucumán Province

Tucumán is the most densely populated, and the smallest by land area, of the provinces of Argentina. Located in the northwest of the country, the capital is San Miguel de Tucumán, often shortened to Tucumán. Neighboring provinces are, clockwise from the north: Salta, Santiago del Estero and...

 of Argentina

Argentina

Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

. The company was sold to the British-owned Córdoba Central Railway

Córdoba Central Railway

The Córdoba Central Railway was a British-owned railway company, founded in 1887, that operated a 1960 km metre gauge...

 (CC) in 1899.

The company was founded in 1886 to acquire a concession, granted to Samuel Kelton in 1885 by the provincial government of Tucumán, for the construction of a 142 km line from Tucumán south to La Madrid, and for the building of 35 km of branch lines, including one from Concepcíon to Medinas, in the sugar growing region of the province.

The line from Tucumán to La Madrid was completed in 1889 but the financial situation of the company deteriorated until in 1899 it was sold to the CC.