John Sherman (born 1959), nicknamed Verm (short for "Vermin") is an American rock climber and a pioneer in the promotion and development of the climbing discipline of bouldering.[1] He is also a climbing writer and outdoor photographer, and the originator of the V-grade system (after his nickname),[1] for grading the technical difficulty of boulder problems, which has since become one of the dominant grading systems worldwide.[2][3]
- ^ a b Cite error: The named reference
NYTwas invoked but never defined (see the help page). - ^ Potts, Mary Anne (12 September 2011). "Climbing "the Strike" in the Black Hills Needles with Legendary John "Verm" Sherman". National Geographic. Retrieved 25 May 2024.
- ^ Cite error: The named reference
CL2was invoked but never defined (see the help page).
© MMXXIII Rich X Search. We shall prevail. All rights reserved. Rich X Search