13+ What Was The High Est Mountain Before Mount Everest Background. Before that it is possible that everest wasn't the highest mountain, but since there aren't any records stating height of mountains, then we could. Maybe k2, that's the 2nd highest so would have been the highest known if it was discovered before everest.
Everest is the highest above sea level.
Mount everest was declared the highest peak of the world in. Reaching 29,029 feet at its summit, everest is indeed the highest point above global mean sea level—the average level for the ocean surface from which elevations are measured. No other mountain on earth has a higher altitude. In 1847 kangchenjunga was discovered as highest mountain before discovery of mount everest.