The Directissima Breakthrough: Guido Magnone on the West Face of the Dru

In the early 1950s, the West Face of the Petit Dru (3,733m) in the Mont Blanc massif stood as the most intimidating unsolved problem in European mountaineering. Rising in a sheer, vertical monolith of red protogine granite for one thousand metres above the Charpoua and Rognons glaciers, the face seemed completely devoid of natural weaknesses. While the classic north face had fallen in 1935 to Pierre Allain, the smooth, vertical slabs of the West Face had rebuffed all suitors, earning a reputation as completely unclimbable without siege engineering.

Fresh from his historic conquest of Cerro Fitz Roy in Patagonia earlier that year, French sculptor and master rock climber Guido Magnone was convinced that the wall could be breached. Teaming up with three of France’s boldest young climbers—Lucien Bérardini, Adrien Dagory, and Marcel Lainé—Magnone arrived beneath the face in late June 1952.

Direct Aid and the Expansion Bolt Revolution

The technical climbing was ferocious from the opening pitches. Where cracks ended in smooth, blank granite, Magnone introduced revolutionary techniques that had never been systematically applied to alpine big walls in Europe. Drilling expansion bolts by hand into the bullet-hard granite, the climbers hung in fabric stirrups (étriers), executing delicate tension traverses and long rope pendulums across sheer overhangs to link discontinuous crack systems.

After climbing the lower 600 metres, a ferocious summer thunderstorm struck the massif, turning the face into a cascading waterfall and forcing a desperate retreat down freezing ropes. Undaunted, the team returned on July 16, re-ascending their fixed lines and carrying provisions to push through the vertical upper headwall.

Standing on the Summit of the Dru

For three grueling days, Magnone and his companions lived on hanging belays and chopped ledges suspended over the void. Pitch after pitch demanded maximum physical endurance, with Bérardini and Magnone leading continuous sixth-grade rock and A2 aid under constant threat of rockfall.

On the afternoon of July 19, 1952, Guido Magnone, Lucien Bérardini, Adrien Dagory, and Marcel Lainé surmounted the final overhanging cornice and stepped onto the razor-sharp summit of the Petit Dru. The ‘Magnone Route’ shattered the psychological ceiling of post-war European climbing, proving that direct big-wall routes on blank vertical granite were possible and ushering in the golden era of modern alpine big-wall directissimas.