This was filmed in Rhône-Alpes (France) & in Etat du Valais (Switzerland) from June to July 2011.
Just to capture these special moments. For example at 1:12 you can see - in the middle of the night - dozens of mountaineers on their way to Mt. Blanc summit, all striving to stand on top of the roof of Europe at sunrise. More mountaineers at 1:20, 1:30 and 1:38 - enjoy it fullscreen.
Music by Dan Phillipson again (twitter.com/danphillipson)