Czech mountaineer dies in Mont Blanc rockfall along Goûter couloir
A Czech climber in his forties died on Thursday afternoon after a rockfall in the Couloir du Goûter, marking the third fatality in the area since July.
Fatal rockfall in the Goûter couloir
A Czech mountaineer in his forties died on Thursday, 10 September 2026, after being swept away by falling rocks in the Mont Blanc massif. The accident occurred in the middle of the afternoon as the climber was moving through the Couloir du Goûter. The victim had embarked on the climb with a companion, who managed to contact emergency rescue services immediately after the incident. The Peloton de gendarmerie de haute montagne (PGHM) from Annecy confirmed the fatality on Saturday, 12 September 2026, confirming reporting by the French regional daily Le Dauphiné Libéré. The emergency response teams verified that the fatal injuries resulted directly from the falling stone debris.
Hazards along the standard ascent route
The Couloir du Goûter is considered one of the most hazardous sections of the classic climbing route used to reach Mont Blanc. The narrow passage is frequently nicknamed the "couloir de la mort" due to persistent and unpredictable rockfalls tumbling down its steep slopes. Climbers ascending toward the peak via the aiguille du Goûter must negotiate this high-risk terrain, which leaves them directly exposed to scree and boulders. The geological structure of the couloir makes it prone to sudden rock detachment throughout the active mountaineering season. High-mountain rescue authorities maintain close observation of the sector because of the recurring threats it presents to alpinists on the standard path.
Precautionary closures and summer casualties
The fatal rockfall on 10 September represents the latest in a series of deadly events occurring along the same section of the mountain. Earlier in the season, during the night between 14 July and 15 July 2026, two other Czech climbers lost their lives after being struck by falling stones in the Couloir du Goûter. In response to environmental factors that accelerate stonefalls, safety interventions were implemented along the route during the height of summer. Warm weather conditions significantly destabilized the rock faces, creating temperatures particularly conducive to rockslides and falling debris. As a direct consequence of this elevated hazard, authorities closed two mountain stopover refuges on the aiguille du Goûter ascent route from 11 August to 26 August 2026.
- Two Czech climbers die in a rockfall in the Couloir du Goûter overnight.
- Two staging refuges on the Goûter route are closed due to heat-induced rockfall risks.
- A Czech climber in his forties is killed by falling stones in the couloir.
- PGHM Annecy confirms the fatality to rescue authorities and press.
