- The mountain ridge starting from Colbricón and ending in Passo Rolle, that belongs to the mountain range of Lagorai, was part of the front line during the Great War.
- During the First World War, before Italy joined the conflict in 1915, the peak of Cavallazza was used to be an Austro-Hungarian military outpost. The outpost, with its articulated system of trenches and tunnels, was strategically located above the access to Passo Rolle, in defense of the valley of the Travignòlo stream.
- During the autumn of 1915, after the fall and the consequent capture of the mountain of Castelàz by the Italian troops, the Austro-Hungarian soldiers were forced to retreat from Passo Rolle, after the pass became a weak spot of the newly created front. On 21 July 1916, the Italian troops striked against the installations on the peak of Cavallazza, managing to take it, together with the entire ridge from the mountain of Colbricón up to Passo Rolle. Right after, due to Austro-Hungarian reinforcements, the Italian offensive was stopped, freezing the front line on the ridge of Colbricón.
- Finegil, Espresso (2015). La Grande Guerra 1914-1918. GEDI Gruppo Editoriale S.p.A, Roma
- Striffler, R. (1994). Guerra di mine nelle Dolomiti. Lagazuoi, Castelletto 1915-1917. Casa Editrice Panorama.
- Bettega, A. (2010). Grande Guerra in valle di Fiemme-Fassa e Biois. Edizioni Gino Rossato.
- Von Lichem, A. (1993). La guerra in montagna 1915-1918: il Fronte Dolomitico. Bolzano, Italy: Athesia.