He fell in love with the mountains, and returned the next summer to help build trails in the newly created Grand Teton National Park. Here he met a kindred soul in mountain guide Paul Petzoldt. Paul trained Glenn to be a climbing guide, and in the summer of 1931, on their first trip guiding together, Glenn made history: wearing leather-cleated football shoes and without a rope, he pioneered a new route up the mountain.

By Glen Exum. 131 pp.