Parco Nazionale Dolomiti Bellunesi

Location: loc. I Castei, Sass di San Martìn – Municipality of Rivamonte Agordino (Bl)

Access: S.S. 203 Agordina up to loc. La Muda. Near the new road gallery, follow (on foot) the old SS road until you reach the track maintenance house (517m) near Pont de I Castei, and from here take a military road climbing with some hairpin bends and a constant slope. Once you reach a junction, leave the military road and, taking the flat trail on the right, you will shortly reach the drill ground of the blockhouse (595m). If you continue following the military road climbing with hairpin bends and galleries along Val Carbonere, you will reach the area of Pianàz (1,050m) on the mountain dominating Sass de San Martìn.

Environmental context – Description of the site: the defense system of I Castei is situated in Val Cordevole and includes the whole Sass de San Martìn, a hillock (630m) of the north-eastern slopes of Monti del Sole mountain group. Situated in a strategic and dominating position near the northern mouth of Canale d'Agordo, in its most narrow point it gave the opportunity to watch over the area both from the south and from Agordo plateau. Situated at about 20 km from Belluno and 10 km from Agordo, it lies within the administrative borders of the Municipality of Rivamonte Agordino and within the Park borders.

Building period: 1883-87 (the blockhouse, the mule track, and the defense buildings of Sass de San Martìn), 1915 (the military road climbing to Pianàz and the connected defense works, partly strengthened towards the end of the World War).

Architectural features: works of military defense. Great historical-testimonial value.