The tallest mountain in the United States has been officially reverted to Mount McKinley, the U.S. Department of the Interior announced in a press release Friday. The official action comes four days after President Donald Trump signed an executive order on his first day back in office that also changes the name of the Gulf of Mexico to the Gulf of America.

In 2015, the name of the peak was changed during the Obama administration to reflect the traditions of Alaska Natives and preference of many Alaskans.

Trump, who took office for a second time Monday, said he planned to “restore the name of a great president, William McKinley, to Mount McKinley, where it should be and where it belongs.