[1] The owner of the mines, state-owned business Yacimientos Carboníferos Fiscales, was looking for an easy way to build the line.

The solution was to use 750mm narrow gauge material that was still in storage in Puerto Madryn, unused since the abandonment of the studies in 1922.

[1] To transport the coal from the mine to the port before the completion of the railway branch, a fleet of 110 steam trucks –with a capacity of 12 tons and manufactured by the Sentinel Waggon Works– was used.

A departure from traditional practice was the use of internal combustion engine trucks to carry materials further outside the rail points.

Until the inauguration of a new pier in Río Gallegos in August 1952, all construction materials were unloaded and all coal was loaded from the beach.

The YPF division that exploited the extraction of carbon, named, "Combustibles Sólidos Minerales" (CSM), initially used the Bahia Aguirre steamship and then purchased two landing crafts from the US Navy.

Although the Perón's administration encouraged the use of coal from Río Turbio in other activities such as the meat processing plant in Puerto Deseado, it was difficult to find willing private clients.

New ships were purchased, and coal emerged from the shadows of the oil industry via the creation of "Yacimientos Carboniferos Fiscales which was taken over by CSM, including the mine and the railroad.

[2] Occasional trains were run over the line since then, but in 2022 it was reported that only 1,000 tons were transported to Punta Loyola, the remainder of the mine's production being used in the township's power station.

Two or three of the Santa Fe locomotives were overhauled for this purpose and it was even proposed that they might resume haulage of coal trains, given their ability to consume the indigenous fuel.