translate English to French: There is exceptional glaciated topography, including the spectacular Yosemite Valley, a 914-meter (1/2 mile) deep, glacier-carved cleft with massive sheer granite walls.
La topographie glaciaire est exceptionnelle, notamment la spectaculaire Vallée de Yosemite, encaissement glaciaire de 914 mètres (1/2 mile) de profondeur aux parois de granit pur.