Four-thousander

A four-thousander[1] is a mountain summit that is at least 4,000 metres above sea level.The term is popular among European mountaineers and climbers because the highest peaks in Europe fall into this category, and the summits of four-thousanders are popular in Europe as climbing goals.There is no agreement[citation needed] over where the boundary is between Europe and Asia which is why there is a dispute over which continent the over 5,000 metres high Caucasus range is in.The exact number of Alpine four-thousanders is unclear, because there are no commonly agreed criteria for mountains, summits and subpeaks.In all 55 peaks lie entirely within one country, over 27 straddle a border but none is located at a tripoint.