An arrow, formed by a line of several hundred skiers, snakes up the side of the mountain on the Julier Pass in Switzerland.

Two-hundred freerider skiers on Melchsee-Frutt, Switzerland.

These athletes climbed 30 metres of vertically-hanging ropes above the Klausen Pass until everybody had come to a stop in a horizontal line. Only after nearly two hours, when the last participant was in position, did the photographer snap the shot.

Two-hundred testers take part in Mammut test event for alpine underwear in Eiger.

Climbers go to extra lengths during a Mammut test event for backpacks in Osogna.

Mammut’s professional trail runners test their endurance during extensive product testing on a high point of Diavolezza.

Mammut celebrates its 150th anniversary by creating a representation of the world map on the Ewig Schneefeld between the Eiger, Mönch, and Jungfrau peaks.

Mammut employees set out to climb the Jungfrau in the Bernese Oberland, aiming to create an exceptional pose featuring the Mammut Peaks Collection on a summit plateau at 4,158 metres.

Climbers in Mammut clothing form an X, the sign for extreme, on the north face of the Eiger.

Twenty-eight mountain guides climbing a Cleopatra’s Needle, turning it into what must surely be the biggest and most spectacular rock cactus in the Alps.

A team of mountain guides assembled on a narrow ledge for a Mammut boot test event high above the Furka Pass.

To celebrate 150 years since the first ascent of the Matterhorn, Mammut and Zermatt mountain guides created a string of lights over the mountain.

Sixty Mammut employees sleep surrounded by ice, wind and snow at 2,700 metres, to test Mammut’s newest sleeping bags.