Two deaths on Mont Blanc: Italian mountain guides suspend regular ascent route

Chamonix-Mont-Blanc – July 16, 2026: Two alpinists were killed by rockfall on Mont Blanc early Wednesday morning. The accident occurred at around 2:30 a.m. in the Goûter Couloir on the French normal route to the summit. According to mountain rescue services, the rope team consisted of three people, and one survivor was treated by rescuers. The deceased included a Czech mountain guide and his client.

The Goûter Couloir is considered a particularly exposed section of the normal route. To reach the Goûter Hut, climbers must cross the gully below the Aiguille du Goûter, where rockfall can occur regularly. Experts believe that current high temperatures are worsening risks at high altitude. Remaining snow, glaciers and permafrost lose stability, which can cause rock masses to break away without warning.

The accident on July 15 has reignited the debate about responsible climbing. Mountain guides on the Italian side have decided not to offer clients the normal route via the Miage Glacier for the time being. They cited the condition of the glacier and increased risks from crevasses and unstable sections. This decision also applies to the Tête Rousse Ridge route at Dôme de Neige.

On the French side, there were no comprehensive official closure measures for the Mont Blanc normal route on Thursday. However, the mountain guide associations of Chamonix and Saint-Gervais did not announce an official suspension of tours following the accident. These differing practices show that each route and each time period must be assessed separately. The absence of a comprehensive closure does not mean that conditions are not dangerous.

The Haute-Savoie prefecture generally emphasizes that Mont Blanc is a demanding objective for experienced alpinists. According to the authorities, between 15,000 and 20,000 people attempt the ascent each year. In addition to physical strain, glacier crevasses, icefall collapse, sudden weather changes and rockfall are among the objective hazards. Hut access and reservation rules also apply on the normal route.

The incident highlights the impact of early-summer heat on alpinism. What matters is not only temperature readings in the valley, but also how snow, ice and rock change at high altitude. Climbers and organizers should therefore check the latest weather forecast, route information, and warnings from local rescue services and mountain guide services before setting out. In unstable conditions, abandoning the climb is the safest option.

The investigation into the exact circumstances of the rockfall is ongoing. This fatal accident and the suspension of Italian guide tours are recent examples of how quickly conditions in the Mont Blanc massif can change. Authorities and professional mountain guides recommend making decisions based on conditions actually observed in the mountains rather than on fixed seasonal schedules.