Weather and seasonal conditions were both good during 1939, and a large number of ascents (163) were reported to the Park Naturalist at Jenny Lake. All the major peaks except Buck Mountain were climbed at least twice, the Grand Teton retaining its popularity with sixty ascents by various routes. The following are noteworthy, three being by new routes:
Grand Teton.—1. New route on N. face, via a couloir left of the head of Teton Glacier, thence to the E. ridge. J. Hossack and G. McGowan.
Ascent of E. ridge, involving crossing of the first gendarme rather than a traverse to its right or left. N. Dyrenfurth, E. N. Ohl.
A fast round trip, from base to summit and return in 5 hours, 22 minutes. J. Hawkes, J. Holyoke.
Mt. Moran.—1. New route on N. ridge, from Moran Canyon to the lower summit. P. Petzoldt, W. Ringler.
2. New route on N. face of N. E. ridge to a point just below the lower summit. E. Clark and D. Grant.