The tallest peak in North America has been named Denali since 2015 when its name was officially changed under former President Barack Obama.

President Donald Trump renamed the Gulf of Mexico to the Gulf of America and the Alaska mountain Denali to Mount McKinley. What you need to know.

Why did they change the name of Mt. McKinley? Donald Trump promised to change the name back, but why was it changed to begin with?

The move is likely to face some pushback in Alaska, where the Alaska Native name has long been favored for the continent’s tallest mountain.

President Donald Trump said the Gulf of Mexico will be called the Gulf of America, while the Denali mountain peak will revert to its former name, Mount McKinley.

President Donald Trump says he’s changing the official name of Alaska’s — and North America’s — tallest peak from Denali back to Mount McKinley. It’s the latest chapter in a long struggle over what the mountain should be called.

President-elect Trump will sign executive orders renaming the Gulf of Mexico and Mount Denali after his inauguration on Monday.

In one of his first acts as president, Donald Trump used an executive order on Monday to rename the Gulf of Mexico and Denali in Alaska. To start, Trump re-named the Gulf of Mexico the “Gulf of America,” following through on a promise he made during his campaign. The body of water borders Texas, Louisiana, Mississippi, Alabama, and Florida.

The owner of Gulfofamerica.com remains unknown but the website – it sells maps, globes and other gear – is registered to domain registrar NameBright.

Some have an immediate policy impact. Others are more symbolic. Some already are being challenged by federal lawsuits.

Some of Trump's executive orders have an immediate policy impact. Others are more symbolic. Some already are being challenged by federal lawsuits.