Lonnie Dupre has summited Denali solo - Could possibly be the first person to do so in mid winter.
http://www.oneworldendeavors.com/news#!news/c1fvs
http://desnivel.com/expediciones/lonnie ... l-invierno
http://www.climbing.com/news/lonnie-dup ... ts-denali/
http://www.explorersweb.com/everest_k2/ ... 1421079215