The mountain achieved worldwide notoriety when it claimed the life of British cyclist Tom Simpson, who died here on July 13, 1967 from heat exhaustion caused by a combination of factors including dehydration (caused by lack of fluid intake and diarrhea), amphetamines, and alcohol, although there is still speculation as to the exact cause of his death. He began to wildly weave across the road before he fell down. He was delirious and asked spectators to put him back on the bike, which he rode to within a half mile of the summit before collapsing dead, still clipped into his pedals. Amphetamines were found in his jersey and bloodstream. There is a memorial to Simpson near the summit which has become a shrine to fans of cycling, who often leave small tokens of remembrance there.