Sinking Range

[lobster]

Which mountain range is shrinking the fastest, and for that matter growing the fastest too?

[New Forester]

Geological processes push up mountains, which then wear down with wind and rain. The youngest mountain ranges are therefore the highest, and are still "growing" -- Alps, Andes, Himalayas etc. Old ranges are low and rounded, and are shrinking -- Appalatians, Grampians etc. The fastest "shrinking" should therefore be where the rainfall is highest.

[sprogglin]

the fastest uplifting mountain range is the Southern Alps in New Zealand, fastest denudating (shrinkng) is parts of the Andes and Himalayas.