Towards the south it breaks suddenly into sheer cliffs, forming a rock face several kilometers long.The south face was climbed for the first time in 1901 by Beatrice Tomasson, Michele Bettega and Bartolo Zagonel.[5] Until the end of World War I the border between Austria-Hungary and Italy ran over Marmolada, so it formed part of the front line during that conflict.On December 13, 1916, an avalanche on Marmolada became known as White Friday, striking the Austro-Hungarian barracks and killing 270 soldiers.[7] On 3 July 2022, a serac collapsed which led to the sliding downstream of over 200 000 m3 of ice and debris, killing eleven people and wounding eight more.