Question: When did they change the name of mount mckinley to denali?
Disambiguated questions and answers: question: When did the Alaska Board of Geographic Names change the name of Mount McKinley to Denali?
When did the Secretary of the Interior change the name of Mount McKinley to Denali?
answer: 1975
August 30, 2015
Natural Questions answer: 2015 (from the Wikipedia article "Denali–Mount McKinley naming dispute")