content: Fair point.  I do not have a reference pic but K2 is generally considered the hardest mountain to climb as it is so steep.  There are very few "flat" areas such as on Everest. Here is the article I got this pic from. "It’s so deadly because of the combination of elements. It is about 800 feet lower than Everest, but the topography is much tougher. Climbing Everest you have stretches that are steep, then it flattens off. Very little of K2 ever flattens off. There’s a shoulder at about 24,000 feet when it flattens off briefly but that’s about the only respite. It’s also avalanche and rock fall-prone."