What is the highest mountain in the world?

However, a major problem relates to the definition of a mountain. Any particular mountain, in addition to its highest point, will also have subsidiary “tops.” Generally, a subjective view is taken of what is a mountain and what is a top. The horizontal distance between main peak and top, the difference in height, the topographic prominence of the top, as well as the general topography, all come into consideration. Although objective criteria have been proposed for distinguishing “peaks” from “tops” (a prominence of 610m, 2,000 feet is one definition), there is no widely agreed standard.