france mountain mountaineer europe climbing mountain climbing alps mountains mountaineering european eurasia rock climbing climber 1920s french alps chamonix alpinism alpine climbing climb 1900s mountain guide alpinist alpinismo alpen alpes 20th century mountain documentary french climbers alpinisme mountain pioneer eurasian alps french mountain climber mountainclimbing rockclimbing mountains mountain film alpi french alpinism frankreich alpine french film shot on film alps mountains range mountaineering documentary mountain terrain mountaineer photographer alpine guide alps mountain range early 20th century alpinismus western europe west europe 1924 northern hemisphere eastern france