My most challenging hikes:
June 2011 Mt. Shasta 9,200 - 13,200, to 11,000 with skins and ski crampons, after that skis on my back with boot crampons and an ice axe.
Sept. 1981 Half Dome 4,000 - 8,800 The down was worse than the up because I inflamed knee bursitis, very painful.
4x, May...