Mountains can be listed according to various criteria:
They can be sorted by height (elevation above sea level)See also: List of mountains by elevationAnother notion of "height" is topographic prominence, see List of most prominent mountains, List of peaks by prominence, or Ultra-prominent peakYet another notion of "height" is distance of summit from the Earth's centerThe notion of "highest" can be restricted to a specific geographic areaCountries can be sorted by their highest elevationIslands can also be sorted by their highest elevationThey can be sorted by country or province.The highest peak on each continent is called the Seven SummitsThe second-highest peak on each continent is called the Seven Second SummitsThe third-highest peak on each continent is called the Seven Third SummitsThey can be sorted by geological origin.They can be organized into mountain ranges.They can be part of peakbagging lists, which are goals for mountain climbers/hikers.