This mountain exists in triple version: the Fleres Tribulaun, the Gschnitz Tribulaun and the Obernberg Tribulaun.
The Tribulaun Group with the three eponymous peaks Fleres Tribulaun (3,097 m a.s.l.), Gschnitz Tribulaun (2,946 m a.s.l.) and Obernberg Tribulaun (2,780 m a.s.l.) is constituted of Main Dolomite from the Triassic, derived from the sedimentation of lagoonal muds. The Dolomite was found here - the French geologist and mineralogist Déodat Gratet de Dolomieu (1750 - 1801) discovered this type of rock, which until that time was unknown.
The Fleres Tribulaun - Pflerscher Tribulaun in German and Tribulaun di Fleres in Italian - is the highest peak of the Tribulaun Group and one of the main climbing mountains of the Stubai Alps. To the north, it borders with the Gschnitztal valley in North Tyrol, and to the south with the Val di Fleres valley in South Tyrol - this means that the peak is situated on the border of Austria and Italy. The Fleres Tribulaun is marked by deep fissures and steep rock faces.
The route takes from Fleres in the South Tyrolean upper Valle Isarco valley to the Sandjoch saddle and through a gorge in a south-easterly direction to the peak. The tour is indicated with the III° degree of difficulty and is not difficult in terms of climbing technique, but must not be undervalued due to rock slide. Climbing equipment is absolutely essential, an alpine guide is recommendable! If you do not want to scale one of the peaks, you can also walk to the Rif. Cesare Calciati al Tribulaun mountain hut (2,369 m a.s.l.), a well-known hiking destination in summer.