[Remark: Mount Tupper in Glacier National Park tests the mettle of enthusiastic alpinists from all over the continent.] Various shots of Mount Tupper and of other peaks of the Selkirk Range. Shots of three alpinists leaving base camp, tackling the mountain. Various shots of men negotiating glaciers, snow fields, rocky ground, sliding down snowy slopes, climbing 45 degree slopes, resting and going on. Shot of very steep Mount Tupper summit, TILT DOWN shaft to two mountain climbers struggling up. CU of climbers. Shot of men silhouetted against sky on highest pinnacle of Mount Tupper. Short PAN of neighboring mountains. Shot of men starting on the journey downwards after reaching the top. Various shots of men coming down mountain, reaching timber line.