Mont Blanc range near Chamonix, Haute-Savoie, French Alps, France, Europe

Mont Blanc range near Chamonix, French Alps, Haute-Savoie, France, Europe

Mountaineer, climber, Mont Blanc range, French Alps, France, Europe

Mountaineers and climbers, Mont Blanc range, French Alps, France, Europe

Mountaineers and climbers, Mont Blanc range, French Alps, France, Europe

Mountaineers and climbers, Mont Blanc range, French Alps, France, Europe

Star trail over Mont Blanc range seen from Lac des Cheserys, Parc Aiguilles Rouges, Haute Savoie, French Alps, France, Europe

Christmas market decorations against backdrop of Mont Blanc mountain range, Chamonix, Haute Savoie, Rhone Alpes, France, Europe

Panorama from Lac des Cheserys, a great terrace from which to admire Mont Blanc range, Haute Savoie, French Alps, France, Europe

Panorama of the mountain range of Mont Blanc, Haute Savoie, French Alps, France, Europe

Mountaineer and climber, Mont Blanc range, French Alps, France, Europe

Christmas market decorations against backdrop of Mont Blanc mountain range, Chamonix, Haute Savoie, Rhone Alpes, France, Europe

Mountaineers and climbers, Mont Blanc range, French Alps, France, Europe

Mountaineers and climbers, Mont Blanc range, French Alps, France, Europe

Mont Blanc range seen from Lac des Cheserys, Aiguille Vert, Haute Savoie, French Alps, France, Europe

Mountaineers, climbers, Mont Blanc range, French Alps, France, Europe

Starry sky over Mont Blanc range seen from Lac des Cheserys, Haute Savoie. French Alps, France, Europe

Mer de Glace glacier, Mont Blanc range, Chamonix, French Alps, France, Europe

Camping under the stars at Lac des Cheserys, with the range of Mont Blanc in the background, Haute Savoie. French Alps, France, Europe

Sea of clouds below Aiguille du Midi cable car station, Mont Blanc range, Chamonix, French Alps, France, Europe

Sunrise, shadow of Mont Blanc, Mont Blanc range, Chamonix, French Alps, France, Europe

Mont Blanc mountain range and Bionnassay glacier, St. Gervais, Haute-Savoie, French Alps, France, Europe

The Mont Blanc mountain range reflected in the waters of Lac des Cheserys, Haute Savoie, French Alps, France, Europe

Mountaineers, climbers, Mont Blanc range, French Alps, France, Europe

Mer de Glace glacier, Mont Blanc range, Chamonix, French Alps, France, Europe

The Green Needle, Mont Blanc mountain range, Megeve, Haute-Savoie, French Alps, France, Europe

Megeve ski slopes, Mont-Blanc mountain range, Megeve, Haute-Savoie, French Alps, France, Europe

The Green Needle, Mont Blanc mountain range, Megeve, Haute-Savoie, French Alps, France, Europe

Mont Blanc mountain range, Mont d'Arbois in Megeve, Haute-Savoie, French Alps, France, Europe

Mont Blanc mountain range, Megeve, Haute-Savoie, French Alps, France, Europe

Mont Blanc range near Chamonix, French Alps, Haute-Savoie, France, Europe

Mont Blanc range in the French Alps, near Chamonix, Haute-Savoie, France, Europe

Mountains of the Mont Blanc Range near Chamonix, French Alps, Haute-Savoie, France, Europe

Mer de Glace glacier, Mont Blanc range, Chamonix, French Alps, France, Europe

Mountain peaks, Mont Blanc range, Haute-Savoie, French Alps, France, Europe

Climber jumping across a crevase stream on Mer de Glace glacier, Mont Blanc range, Chamonix, French Alps, France, Europe

Mont Blanc Mountain Range, Alps, Haute Savoie, France

Chamonix Valley, Mont Blanc and the Mont Blanc Massif range of mountains, Haute Savoie, French Alps, France, Europe

Mont Blanc range seen from the Tour du Mont Blanc trekking route near Lac Blanc in the French Alps, Haute Savoie, Auvergne-Rhone-Alpes, France, Europe

Star trail over Mont Blanc range seen from Lac de Cheserys, Chamonix, French Alps, Haute Savoie, France, Europe

Aiguilles du Dru, Mont Blanc range, Chamonix, French Alps, France, Europe

Mountaineers and climbers, Mont Blanc range, French Alps, France, Europe

The Mont Blanc range from the Aiguillette des Posettes with Bilberry plants colouring up in late summer.

The Drus, a famous rock wall on the Mont blanc range. The pale grey area of rock upper rightis new rock revealed by a recent, massive rock fall.

The rapidly retreating Glacier des glaciers on the Aig des Glaciers, part of the Mont Blanc range. The lateral moraines are clearly visible that once bordered the ice, as is the fresh rock exposed by the rapid retreat.

The Mont Blanc range from the Aiguillette des Posettes with Bilberry plants colouring up in late summer.

Mont Chetif and the mont blanc range from Refuge Bertone, above Courmayeur, Italy.

The Mont Blanc range from the Aiguillette des Posettes with Bilberry plants colouring up in late summer.

The Mont Blanc range from the Aiguillette des Posettes with Bilberry plants colouring up in late summer.

The Mont Blanc range from the Aiguillette des Posettes with Bilberry plants colouring up in late summer.

A rapidly retreating glacier on the side of the Grande Jorasses, Mont Blanc range.

The rapidly receding Glacier de pre de Bar in the Mont Blanc range, Italy.

The rapidly receding Brenva Glacier in the Mont Blanc range, Italy, with cyclists

Panorama of Aiguilles du Chamonix, Aiguille du Midi, Mont Blanc du Tacul, Mont Maudit, Mont Blanc and Aiguille du Gouter, Mont Blanc range, Chamonix, Savoy, France

Panorama of Aiguilles du Chamonix, Aiguille du Midi, Mont Blanc du Tacul, Mont Maudit, Mont Blanc and Aiguille du Gouter, Mont Blanc range, Chamonix, Savoy, France

Close up of an Alpine Ibex, Capra ibex, Mont Blanc range, Chamonix, Savoy, France

Lac Blanc with Chalet du Lac Blanc, Mont Blanc range in the background with Aiguille du Chardonnet, Aiguille d' Argentiere, Aiguille Verte and Grand Dru, Mont Blanc range, Chamonix, Savoy, France

Mont Blanc range with Aiguilles du Chamonix and Mont Blanc reflecting in a mountain lake, Mont blanc range, Chamonix, Savoy, France

Mont Blanc range reflecting in a mountain lake, Mont Blanc range, Chamonix, Savoy, France

View to Mont Maudit, Mont Blanc and Aiguille du Gouter, Mont Blanc range, Chamonix, Savoy, France

Mont Blanc range reflecting in a mountain lake, Mont Blanc range, Chamonix, Savoy, France

Panorama of Mont Blanc range reflecting in a mountain lake, Mont Blanc range, Chamonix, Savoy, France

Mont Blanc range reflecting in a mountain lake, Mont blanc range, Chamonix, Savoy, France

Alpine Ibex, Capra ibex, Mont Blanc range, Chamonix, Savoy, France

Mont Blanc range with Aiguille Verte and Grand Dru reflecting in a mountain lake, Mont Blanc range, Chamonix, Savoy, France

Mont Blanc range with Grandes Jorasses and Mont Dolent reflecting in a mountain lake, Pennine Alps, Aosta valley, Italy

Mont Blanc range reflecting in a mountain lake, Mont blanc range, Chamonix, Savoy, France

Mont Blanc range with Grandes Jorasses and Mont Dolent reflecting in mountain lake, Pennine Alps, Aosta valley, Italy

Gondola lift going from Mt. Aiguille du Midi to Point Helbonner, view of Turin Cabin, Mont Blanc, Vallee Blanche, glacial crevasses, Savoy Alps, France, Europe

The ice tunnel leaving the Aiguille du Midi to descend into the Valley blanche, Chamonix, Mont Blanc Massif, Alps, France, Europe

Panoramic Chamonix Terrace on the Piton Nord, Aiguille du Midi, Chamonix, Mont Blanc Massif, Alps, France, Europe

Climber on hiking trail, Grand Balcon Nord, glacier tongue Mer de Glace, behind Grandes Jorasses, Mont Blanc massif, Chamonix, France, Europe

Young woman in front of mountain panorama, reflection in Lac Blanc, mountain peaks, Grandes Jorasses and Mont Blanc massif, Chamonix-Mont-Blanc, Haute-Savoie, France, Europe

Young woman walking in front of mountain panorama, reflection in Lac Blanc, mountain peaks, Grandes Jorasses and Mont Blanc massif, Chamonix-Mont-Blanc, Haute-Savoie, France, Europe

Evening atmosphere with alpenglow, water reflection in Lac Blanc, mountain peaks, Aiguille Verte, Grandes Jorasses, Aiguille du Moine, Mont Blanc, Mont Blanc massif, Chamonix-Mont-Blanc, Haute-Savoie, France, Europe

Cable car between Aiguille du Midi and Punta Helbronner, Funivie Monte Bianco, Mont Blanc Funicular, Mont Blanc Massif, Alps, Italy, Europe

Black and white, high alpine mountain landscape, peak Aiguille du Gouter with glacier, Glacier de Taconnaz, behind Mont Blanc, Chamonix, Haute-Savoie, France, Europe

Cable car between Aiguille du Midi and Punta Helbronner, Funivie Monte Bianco, Mont Blanc Funicular, Vallee Blanche Aerial Tramway, Mont Blanc Massif, Alps, Europe

Grand Flambeaux, Aiguille du Midi from Glacier's sun terrace at Punta Helbronner, Funivie Monte Bianco, Mont Blanc funicular, Mont Blanc Massif, Alps, Italy, Europe

Lower terrace and summit tower at the top of the Aiguille Du Midi, Chamonix, Mont Blanc Massif, Alps, France, Europe

Glacier's sun terrace at Punta Helbronner, Funivie Monte Bianco, Mont Blanc Funicular, Mont Blanc Massif, Alps, Italy, Europe

Funicular station at the Aiguille Du Midi, Chamonix, Mont Blanc Massif, Alps, France, Europe

Cable car between Aiguille du Midi and Punta Helbronner, Funivie Monte Bianco, Mont Blanc Funicular, Vallee Blanche Aerial Tramway, Mont Blanc Massif, Alps, Europe

Summit of the Aiguille Du Midi, Chamonix, Mont Blanc Massif, Alps, France, Europe

Cable cars from Aiguille du Midi to Punta Helbronner, Funivie Monte Bianco, Mont Blanc Funicular, Mont Blanc Massif, Alps, Italy, Europe

Panoramic terrace of the Aiguille Du Midi, Chamonix, Mont Blanc Massif, Alps, France, Europe

Glacier's sun terrace at Punta Helbronner, Funivie Monte Bianco, Mont Blanc funicular, Mont Blanc Massif, Alps, Italy, Europe

Upper terrace and summit tower at the top of the Aiguille Du Midi, Chamonix, Mont Blanc Massif, Alps, France, Europe

Panoramic terrace at the Aiguille du Midi, Chamonix, Mont Blanc Massif, Alps, France, Europe

Highest mountain of Europe, Mont Blanc, 4809 m

Three participants of the UTMB are running in the hills of Chamonix. The famous peaks of the Mont Blanc range are in the background. The Ultra-Trail du Mont-Blanc (also referred to as UTMB) is a single-stage mountain ultramarathon. It takes place once a year in the Alps, across France, Italy and Switzerland. The distance is approximately 166 kilometres (103 mi), with a total elevation gain of around 9,600 m. It is widely regarded as one of the most difficult foot races in Europe. It's certainly one of the largest with over two thousand starters. The combined participation in all of the events is approaching 10 thousand runners. While the best runners complete the loop in slightly more than 20 hours, most runners take 30 to 45 hours to reach the finish line.

A young male runner is jumping in the air on a mountain ridge near Chamonix with the spectacular Mont Blanc range in the background.

Train Station Chamonix Montenvers, Mer De Glace, Chamonix, France

Wildflowers blooming along Tour du Mont Blanc trail, with mountain range and glaciers in the background, Val Veni, Aosta Valley, Italy

Panorama of Mont-Blanc at twilight, and Arve valley. Shooting above Sallanches. Haute-Savoie, France

Snow cannon in action and Mont Blanc Massif, at sunset, seen from the station of Brasses, Haute-Savoie, Alps, France

Massif of Mont-Blanc, at sunset, seen from the station of Brasses, in Haute-Savoie, Alps, France