Germany’s Michi Wohlleben has repeated the E9 trad climb Prinzip Hoffnung at Bürs in Austria, as well as the 9a sport climb Speed Integrale at Voralpsee in Switzerland.
Interview with Swiss alpinist Ueli Steck after climbing the 82 alpine four-thousanders, carried out in 62 days last summer from 11/06/2015 to 11/08/2015. The enchainment had previously been carried out...