Mont Blanc massif inaccessible via normal routes after heatwave summer

The three main access routes to Mont Blanc are closed due to rockfalls and ice collapses.

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The fact

Record summer temperatures in 2026 have weakened rock faces and glaciers.

Climbers are advised to postpone their ascents until further notice.

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Auto-synthesis from 1 media source · identified on August 20, 2026