The first men to undertake the ascent were Giuseppe Loss, a botanist and alpinism pioneer from Primiero, together with six companions. On July 18, 1865 they departed from San Lorenzo in Banale, advanced through Val d'Ambiez and having passed over the Forcolotta di Noghera approached the mountain over the vedretta d'Ambiez through the south-east slope along the trajectory that constitutes what is now known as the 'Via Normale'. Cima Tosa turned out to be accessible only by climbing through a 25-metre drop vertical rock face. They decided to climb through a wet chimney, 'il camino della Tosa' (UIAA: II), though one of the companions thought it better to stay behind. Finally they reached the top, and by doing so, they preceded an undertaking of the founder of the Alpine Club (UK), John Ball, by just four days. John Ball's account of his ascent in the 'Alpine Journal' brought the mountain into the alpinists' limelight. Loss' and Ball's itinerary would remain the only way for a number of years, while several attempts were made to reach the three consecutive summits of Crozzon di Brenta passing over the ridge between the two mountains.