John Sherman (born 1959), nicknamed Verm (short for "Vermin") is an American climber and a pioneering boulderer. He is also a writer and photographer. He is the originator of the V-scale for grading boulder problems. Sherman was a very visible "outsider" character in the climbing world during much of the 1980s and 1990s. An early boulderer, Sherman followed the sport from the era of searching for elusive

Gill A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they ar ...

arrows to the forefront of the modern climbing world. He was one of the foremost developers of

Hueco Tanks Hueco Tanks is an area of low mountains and historic site in El Paso County, Texas, in the United States. It is located in a high-altitude desert basin between the Franklin Mountains to the west and the Hueco Mountains to the east. ''Hueco'' is ...

bouldering with over 400 first ascents there in the 1980s and early 1990s.

References

* * {{DEFAULTSORT:Sherman, John American rock climbers Living people 1959 births