Ueli Steck is considered one of the world’s best solo climbers. He mastered the 9th grade of difficulty (UIAA) in climbing by the age of 17. At 18, he climbed the Eiger north face, the famous Bonatti Pillar in the Mont Blanc massif. In June 2004, he climbed the triple peaks of the Eiger, Mönch and Jungfrau within 25 hours with Stephan Siegrist. Another successful climb was the so-called Khumbu Express in 2005, for which he was selected as one of the top three best alpinists in Europe by the climbing magazine “Climb!”. This was the first solo climb of the Cholatse (6440 m) north face and of the Tawoche (6505 m) east face. Homepage 
