Colle Croce di Ferro, Mountain pass in Usseglio, Italy.

Colle Croce di Ferro is a mountain pass at 2546 meters (8,345 feet) linking Valle di Viù and Val di Susa through stone paths and open alpine meadows. The route follows marked trails that offer wide views across the surrounding ridges and valleys in clear conditions.

In the summer of 1944, a small barracks building a short distance from the pass housed the command of the 4th Alpine Division GL "Stellina", a partisan formation. The pass lies on the border between the municipalities of Bussoleno and Usseglio, between Monte Palon to the west and Costa Fenera to the east.

The iron cross that gives the pass its name stands as a landmark that guides travelers across this high crossing. Local herds graze on the alpine meadows here, and this pastoral use has shaped the landscape for generations.

The pass is crossed by the GTA stage linking Mompantero to Usseglio. The Ravetto refuge, a renovated old building a few metres from the pass, is privately run. From the pass a broad grassy and stony ridge leads up to Monte Palon.

The barracks near the pass housed the command of the 4th Alpine Division GL "Stellina" in summer 1944. A few metres away, a separate restored old building holds the privately run Rifugio Ravetto, so the wartime command post and today's refuge are two distinct structures.