Colle Margherina is a high mountain pass at an elevation of 2.420m (7,939ft) above the sea level, located in the Province of Cuneo in the Italian region of Piedmont, about 100 km southwest of Turin and about 40 km west of Cuneo, on the border with France.
The pass crosses the watershed between Maira and Stura valley. The unpaved road to the summit is rough in parts. It’s an ex military natural surface cart track with modest slope. The surface of the road is mostly gravel. Adverse weather conditions can prompt closure of the road. Thunderstorm activity can quickly change unpaved roads to four-wheel-drive condition.
The experience of using this road is very impressive. In some places is only wide enough for one vehicle, and in many places bordered by a drop of hundreds of meters (many hundreds of feet) unprotected by guardrails. The road is extremely challenging. Along the path there are several obsolete military barracks.