North America's tallest mountain has lost 83 of its 20,320 feet.

Mount McKinley is situated in Alaska and was the 15th tallest mountain in the world when it was measured by a technology called phtogrammetry in 1952. 

That was until a new mapping technology put the mountain at 20,237 feet, 83 fewer feet than it was originally pegged at. 

The new height was measured by a radar mapping system deployed by the USA's Statewide Digital Mapping Initiative, which plans to produce 11,000 new maps of the 49th state by 2016. 

Alaskan climbers told state media they were unfazed by the revelation. One claimed "the air is just as thin" while another rightly pointed out that "it's still high, it's still hard, it's still cold". 

The loss of 83 feet doesn't change Mount McKinley's position in the world rankings. It's still several hundred feet taller than Mount Logan, North America's second-highest peak in Canada. 

Check out the world's tallest mountains:

5. Ismoil Somoni Peak, Tajikistan (24,590 ft)

4. Gangkhar Puensum, Bhutan (24,836 ft)

3. Kangchenjunga, India (28,169 ft)

2. K2, Pakistan (28,251 ft)

1. Mount Everest, Nepal/China (29,029 ft)

All images: Wikipedia Commons