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elevation
I presume you ask about the minimum height when a hill is considered a mountain. In the UK it's 2000 feet.
While Chimborazo is not the tallest mountain by height above sea level, With an elevation of 6268 m, Chimborazo is the highest mountain in Ecuador.
The summit of K2 is 8611 metres above sea level
A mountain top is higher (greater) in altitude. That is the definition of altitude : height above a surface, or above sea level.
Macgillycuddy's Reeks - the height is 1,038 metres above sea level.
I presume you ask about the minimum height when a hill is considered a mountain. In the UK it's 2000 feet.
At the top. "Altitude" means elevation or height above a surface, or above sea level.
Anyone paddling in the sea is at sea level. Anyone, who has climbed to the top of a mountain, is very high above sea level. Therefore, the height of humans above sea level is too varied to answer.
The tallest mountain in Australia, Mount Kosciuszko reaches a height of 2228 meters (7310 ft) above sea level.
1137 m