The state park, Denali State park, just south of the National Park calls the mountain "Denali" but the National Park calls it McKinley as do most of the people I know in Alaska do. Denali is the Athabascan word for the mountain, according to some, but none of my Athabascan speaking friends in Alaska, ever called it that until the name of the national park was changed from McKinley National Park to Denali NP, but the name of the mountain wasn't changed. I will totally disagree with Murray on this one.