article_title name birth_date death_date
pierre chevalier -lrb- caver -rrb-
 pierre chevalier april 24 1905 december 4 2001
pierre chevalier -lrb- caver -rrb-

pierre chevalier -lrb- 24 april 1905 -- 4 december 2001 -rrb- was a well-known caver and mountaineer from france , with many alpine ascents and cave explorations to his credit .
chevalier is principally known for the exploration of the dent de crolles cave system over a twelve-year period -lrb- 1936 -- 1947 -rrb- , which became the deepest cave in the world .
chevalier recorded this exploration in his book `` escalades souterraines '' -lrb- `` subterranean climbers '' -rrb- .
