1. Derek Geoffrey Hersey was a British rock climber who specialized in free soloing, and was for many years an active participant in the Boulder, Colorado climbing scene in the United States.

1. Derek Geoffrey Hersey was a British rock climber who specialized in free soloing, and was for many years an active participant in the Boulder, Colorado climbing scene in the United States.
Derek Hersey was featured in Climbing Magazine and posthumously in the film Front Range Freaks.
Derek Hersey was introduced to climbing by his father, who went hiking near Manchester every week.
Derek Hersey learned to climb on the gritstone of the Peak District National Park in Derbyshire.
In 1983, after being unemployed for five years in England, Derek Hersey decided to travel to the United States, where he lived for the rest of his life.
Derek Hersey was perhaps best known for his exploits in Eldorado Canyon, but his resume included many other challenging ascents.
Derek Hersey was well known for pumping up and down laps on the sustained 5.10 route Rosy Crucifixion in Eldorado Canyon as a workout regime.
Derek Hersey died on 28 May 1993 in an accident while soloing the Steck-Salathe Route without protective gear, on Sentinel Rock in Yosemite National Park.
Craig Luebben, a friend of Derek Hersey, speculated that he encountered a slippery rock.
The search for Derek Hersey's body was featured in a report on the CBS News programme 48 Hours.