During the Edwardian Period, and up until the outbreak of hostilities heralding World War I, Young made several new and difficult ascents in the Alps, including noted routes on the Zermatt Breithorn on Monte Rosa (the Younggrat), the west ridge of the Gspaltenhorn, on the west face of the Weisshorn, and a dangerous and rarely repeated route on the south face of the Täschhorn. His finest rock climb was the Mer de Glace face of the Aiguille du Grépon. In 1911, with H. O. Jones, he ascended the Brouillard ridge of Mont Blanc and made the first complete traverse of the west ridge of the Grandes Jorasses, and the first descent of the ridge to the Col des Hirondelles. His favoured, but not only, guide was Josef Knubel of St Niklaus.