[1] The line, used to carry the marble from the quarry to the valley, consisted of a single rail on wooden sleepers, on which a motorized tractor hauled a sled load.

The system of the sleds was already used, for the transport of marble, also in other vie di lizza (i.e. "routes of contention"),[2] on other trials used for the lizzatura.

[3] This was the only plant of its kind to be built, and the track was realized in the workshops of Sesto San Giovanni, near Milan.

[4] The monorail starts in the quarries of Piastreta (1,580 m), below the Sella mountain, and reaches Renara (310 m),[6] a zone near the village of Gronda, 9 km far from Massa.

From an altitude of 995 m begins its descent through a channel called "Fosso del Chiasso", where the slope reaches 90% until the end of the trail at the hill of load.