. _:b1216710 . "FTT:842"^^ . "ENVO:00000307"^^ . "A portion of a glacier characterized by rapid flow and a chaotic crevassed surface."^^ . "ice mass"^^ . _:b1216709 . "Wikipedia:Icefall"^^ . . _:b1216710 . "ENVO"^^ . _:b1216709 . _:b1216709 . _:b1216710 . _:b1216710 . "FTT:758"^^ . _:b1216709 . "icefall"^^ .