Formerly known as Mt McKinley, Alaska's Denali is North America's highest mountain, standing tall at 20,320 feet. The mountain was first summited in 1913, and since then has garnered a reputation as one of the most difficult of the seven highest peaks to conquer. This is because Denali's location, near both the Arctic Circle and the Pacific Ocean, creates some of the world's most vicious weather and the sheer amount of height that must be climbed. Denali rises 17,000 feet up from the plain below, while Everest, although much taller, only has 13,000 feet of vertical elevation gain making the actual climb up Denali longer.
The mountain sits inside Denali National Park, and climbing permits are organized by the National Park Service.