In the 1960s, mountaineering became more and more technical and committed, the great ascents of this period were most often made by ropes of guides without clients. Distant expeditions are gradually becoming widespread. Georges Payot, originally from Chamonix, will be among the most active protagonists in the valley but also abroad. He was born in 1941, became a guide at the age of 20, and embarked on a career as a teacher at ENSA for several decades.