What is the hardest mountain to climb in the world and why?

This year saw the deadliest day ever on Mount Everest, with 16 people — all of them Sherpas — killed in a massive avalanche. read more

Aside from being the world’s tallest mountain and technically difficult, Everest has a plethora of other problems regarding the crowding of the mountain by climbers. The mortality rate for Sherpas on Everest surpasses those of the US's most dangerous industries, like commercial fishing, mining, and the military. read more

Make no mistake, Everest is still a difficult climb. Weather and altitudes can still be deadly, and avalanches have claimed dozens of lives in recent years. read more