Can Trump just order new names for Denali and the Gulf of Mexico? A geographer explains who decides what goes on the map

Known as Mount McKinley until 2015, Denali’s current name reflects what Native Alaskans call the mountain. Arterra/Universal Images Group via Getty Images Innisfree McKinnon, University of Wisconsin-Stout President Donald Trump’s executive order to rename the Gulf of Mexico and Alaska’s Denali, the tallest peak in the country, has resulted in lots of discussion.