Teewinot (12,100). Among the seven 1931 ascents of this peak were two traverses which involved new routes :

(1) Ranger Frank Smith and the writer made a west-to-east traverse from Teton Glacier on June 22nd (first ascent from the west).

(2) On July 4th Theodore Anderson, Rudolph Edmund, Harold Hendrickson, and the writer climbed the peak by the usual route (east face) and made a descent through northwest couloirs to the floor of Cascade Canyon (new route).

Carl Sampson, H. L. McClintock, and his son, Frank, climbed Teewinot on July 27th, giving Frank (aged ten) the distinction of being the youngest climber to have scaled a Teton peak. Mrs. Fred Wittenberger of Vienna, who climbed Teewinot on July 12th with her husband, is the only woman to have registered on this summit.