The first person to climb mt Denali?

Credit is given to Hudson Stuck, Walter Harper and Harry Karstens in 1913.

The northern peak was first scaled in 1910, and in 1913 Hudson Stuck and Harry Karstens ascended the southern peak, the true summit.

Denali (Mount McKinley) was first climbed on the 7th June 1913 by Hudson Stuck, Harry Karstens, Walter Harper and Robert Tatum