Joaquin “El Chapo” Guzman, the notorious Mexican drug kingpin, has arrived at the federal maximum security prison in Florence to serve his prison sentence after being whisked away early Friday from a secret location in New York City, his attorney told The Denver Post.

“He’s there,” Jeffrey Lichtman, Guzman’s attorney said a few minutes after noon.

Guzman arrived Friday at Administrative Maximum U.S. Penitentiary, or ADX, in Florence. The reputed highest security prison in the country is also called the “Alcatraz of the Rockies.”

Guzman, 62, was sentenced Wednesday to life plus 30 years in prison in a Brooklyn court and was ordered to repay $12.6 billion in restitution in connection to his cocaine trafficking in the U.S.

Lichtman said he likely will file an appeal on Guzman’s behalf on Friday. He said ADX is just awful.

“It’s basically some more torture,” he said in a phone interview.

Another of Guzman’s attorneys, Mariel Colon Miro, said her client has a right to see his lawyers to prepare for his appeals. Miro also did not have a favorable opinion of ADX.

“It’s Supermax. He’s pretty much going to be in a box most of the time,” Miro said. She added that he will be allowed to go outside for an hour a day if it is not raining.

Miro said it was a pleasure to represent Guzman and she looks forward to continuing to be his lawyer during appeals.

“He’s a very humble person who always thanks his attorneys for representing him. He’s a very likable person,” Miro said during the phone conversation on Friday.

A federal judge in Brooklyn handed down the sentence, five months after Guzman’s conviction in an epic drug-trafficking case.

Guzman was extradited from Mexico to the U.S. in 2017 to face a host of criminal charges including murder, bribery and drug smuggling after he escaped from Mexican prisons two times. He has been kept in solitary confinement in an ultra-secure facility at a Manhattan jail.

Most inmates at Supermax are given a television, but their only actual view of the outside world is a 4-inch window. They have minimal interaction with other people and eat all their meals in their cells.

The Associated Press contributed to this report.