Mountains are formed through tectonic forces, erosion, or volcanism,[1] which act on time scales of up to tens of millions of years.[2]
https://en.m.wikipedia.org/wiki/Mountain
HEIGHT 400
Wikipedia 
MountainsMountains are formed through tectonic forces, erosion, or volcanism,[1] which act on time scales of up to tens of millions of years.[2]
https://en.m.wikipedia.org/wiki/Mountain
HEIGHT 400
Wikipedia