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52 Galleries Road Monte Pasubio

Along the First Army Road


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Where is


Località Bocchetta Campiglia, 36010 Posina VI, Italia (0m s.l.m.)


On Pasubio to rediscover the military engineering of the Great War

The 52 Tunnels Road (or First Army Road) is a route of extraordinary historical and environmental interest, a military mule track built during the Great War. It is one of those hikes that must be done once at least in a lifetime. The beauty of the landscape enchants us and motivates us to continue the ascent. The boldness of the mule track that climbs inside the spires and pinnacles of the Grattanuvole area on the south face of the Pasubio Massif, on the other hand, questions us about the magnitude and difficulty of the war effort put in place to stop the enemy at the gates.

The primary purpose of the construction of the "Road of the 52 Tunnels" was to allow the transit of men and charters (i.e., the baggage of a military company, including provisions, ammunition, equipment, wagons, and anything else that might be needed) in any season and in any weather, covered from the view and offense of the enemy, as opposed to the Scarubbi rolling road, which could also be traveled by trucks, but only in the summer season and at night despite the masking, being exposed to the view of Austrian artillery observers stationed on M. Majo, M. Toraro, M. Seluggio and M. Cimone.

52 tunnels: when to go, where to start, difficulty of the route

Its route begins at Bocchetta Campiglia (1,216 m above sea level) and ends at Porte del Pasubio (1,928 m), climbing the southern slope of Mt. among bold spires, deep ravines and steep rock walls. Because of its gradient, length and the presence of some exposed sections, or where landslides could occur, the First Army Road is classified as a route of medium difficulty. Therefore, before tackling it, it is good to have informed yourself properly, or made arrangements to be accompanied by a guide. It helps a lot to choose the appropriate time for the hike: spring, estrate and autumn are ideal times.

Some numbers

The total length of the road is about 6,300 m, of which 2,300 m represent the development of the 52 tunnels, and the remainder, for about 4 kilometers, were dug halfway up the living rock. The minimum width of the road, planned by the planners at 2.20 m, is normally 2.50 m, with a minimum outer radius of the bends of 3 m to make it possible for the charcoalers to travel it with both center and side loads. The tunnels were illuminated both electrically and by open windows in the wall: the latter and the mid-slope sections were protected by an iron rod guard rail and supported by "T" posts, also made of iron. The average slope of the road is 12 percent. Only in some places does it reach a maximum slope of 22%.

itinerary map image


Departure from Bocchetta Campiglia

You leave the car in the parking lot and off you go!

Among the Galleries

Curiosities about some sections of the route

Porte del Pasubio: the end of the journey

Time to choose the way back

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Recommended by
Paolo Asnicar

History lived, breathed in one of the iconic mountains of the First War. A fascinating route to be experienced and approached with respect, both for the wartime events but also for the altitude of the mountain.