Ferrocentral
The company also ran regional services ( such as Tren de las Sierras ) on Ferrocarril Belgrano's metre gauge tracks in Córdoba Province . 
<triplet> Tren de las Sierras <subj> Ferrocarril Belgrano <obj> part of <subj> metre gauge <obj> track gauge <subj> Córdoba Province <obj> located in the administrative territorial entity <triplet> Ferrocarril Belgrano <subj> metre gauge <obj> track gauge