Jacob Cook is a professional climber and mathematics professor originally from London, England. Jacob is an elite rock climber having climbed routes up to 14b sport and 13c trad, but his real passion is for free climbing on the world’s biggest rock faces.

Jacob’s adventure climbing story began from a sailboat on the West coast of Greenland in 2013. There, he and Ian Faulkner (as fresh-faced big wall newbies) made the first ascent of the 1200m Horn of Upernavik, in a 31 hour continuous push. Since then Jacob has sought out big, adventurous objectives around the world including:

• The first free ascent of Disco 2000 (13c, 400m) on Blamman in Norway with Dave Macleod.

• The first free ascent (and second ascent in any style) of the 1000m East face of Mount Slesse in BC, Canada, with Tony McLane.

• A free ascent of El Niño (5.13c, 30 pitches) on Yosemite’s El Capitan over six days with Robbie Phillips.

• Freerider (13a, 32 pitches) free in ~16 hours, also on El Capitan with Pete Whittaker.

• Seen here on the left is Jacob in his natural habitat, strung out above tiny gear while halfway up the first ascent of an unnamed granite tower in 2019. This route became The Niv Mizzet Line, the first 5.13 put up in alpine style on Baffin Island.

Jacob is also a mathematician, his PhD was motivated by questions about the foundations of mathematics and infinity. Since 2017 he has worked as a mathematics professor at Quest University, Squamish.