The photos

Jeff Mercier flashing the M10+ crux pitch of Röstigraben, Oeschinenwald, Kandersteg Switzerland
© Hugo Vincent Photography

Simon Chatelan making the first ascent of pitch 3 of Röstigraben, Oeschinenwald, Kandersteg Switzerland
© Hugo Vincent Photography

Simon Chatelan establishing pitch 3 of Röstigraben, Oeschinenwald, Kandersteg Switzerland
© Hugo Vincent Photography

Simon Chatelan establishing pitch 1 of Röstigraben, Oeschinenwald, Kandersteg Switzerland
© Hugo Vincent Photography

Jeff Mercier climbing towards the end of the second pitch of Röstigraben, Oeschinenwald, Kandersteg...
© Hugo Vincent Photography