At night, a convoy of tractor crawlers rattle through the snow to groom the ski slopes. Just under 3000 metres in altitude, excavators dig into the ground using dynamite to build a reservoir for the preparation of artificial snow....
At night, a convoy of tractor crawlers rattle through the snow to groom the ski slopes. Just under 3000 metres in altitude, excavators dig into the ground using dynamite to build a reservoir for the preparation of artificial snow....