Driving to Malga Clef: A grueling 18% climb in the Italian Trentino

Located in the heart of the Province of Trentino, in the northern Italian region of Trentino-Alto Adige/Südtirol, the road to Malga Clef is a legendary ascent for those who seek the rawest side of the Alps. Reaching an elevation of 1,720m (5,643ft) above sea level, this mountain track is a masterclass in steep, forest-lined driving.

Malga Clef

The drive is characterized by its deep immersion in the alpine woods, particularly around Località Comandere. As seen in recent photographs, the road is a narrow asphalt ribbon that demands precision, especially when the surface is damp or covered in autumn leaves. The altitude and the central position of this alpine dairy provide some of the broadest and most spectacular views of the mountain ranges of south-western Trentino.

Road facts: Malga Clef
Location Trentino, Italy
Elevation 1,720 m (5,643 ft)
Starting Point Paved SP70 Road
Length 10.7 km (6.6 miles)
Max Gradient 18%
Surface Paved / Unpaved sections

How long is the road to Malga Clef?

The journey begins at the intersection with the paved SP70 road. From this point, the route to the summit is 10.7 km long. However, the road is divided into two distinct sections: the first part is accessible to general traffic, but the last 6 km are strictly closed to private motorized vehicles. This restriction ensures that the final approach to the malga remains a peaceful environment for the local ecosystem and hikers.

How challenging is the road to Malga Clef?

This road is notoriously "defiant" due to its combination of narrow passages and extreme steepness. The first six kilometers are the most punishing, with an average gradient of approximately 11%. As you navigate the hairpin turns through the forest, the road hits several ramps with a maximum gradient of 18%. These sections require low gears and constant focus, especially for cyclists or authorized service vehicles.

The surface transitions from worn asphalt to gravel as the altitude increases. At the summit, the environment opens up into the typical alpine meadows of a dairy farm. Malga Clef is part of a network of local farms where traditional cheese-making is still the primary activity. Travelers can often find local producers selling fresh dairy products directly from the malga. There is also a small campground area nearby, making it a perfect spot for those who want to experience the silence of the Trentino mountains at night.

Safety and Preparation

Because much of the road is shaded by dense forest, the asphalt can hold moisture and moss long after the rain has stopped, significantly reducing traction. In winter, the steep 18% ramps are usually covered in deep snow, making the route completely impassable. The best window to visit Malga Clef is from June to late September, when the dairy farms are active and the mountain air is at its most refreshing. Always ensure your braking system is in perfect condition before attempting the descent.