Grand Traverse. During July 1950 Mike Brewer and Dick Pownall completed the longest traverse ever made in the Tetons. They started at midnight from Jenny Lake and ascended five major peaks, in this order: Nez Perce, Cloudveil Dome, S. Teton, Middle Teton, Grand Teton. Regular routes were used on all peaks, except for the descents of the Middle Teton (N. ridge) and the Grand Teton (E. ridge). The summit of the Grand was reached at 2.30 P.M., 14½ hours from Jenny Lake. Hazardous snow and ice conditions on the E. ridge of the Grand slowed progress. It was not until 7.30 P.M. that the climbers reached the Grand Teton Glacier— too late to carry out their original plan to include Owen and Teewinot. The longest previous traverse was accomplished in August 1946 by M. McLane and J. Snovel, who ascended the Grand, Middle and S. Tetons. In July 1938 H. Butterworth and J. Durrance traversed from the S. Teton to the Grand.