|How long does it take for mountains to grow(in years/decades)?
|Question Date: 2011-03-17|
The tallest mountains on earth, the Himalayas, started forming about 50 million years ago and are still growing about two inches every year!
Mountains can grow at rates as high as one inch per year...so to get very high mountains requires MILLIONS of years.
It takes tens of thousands to hundreds of thousands of years to build a typical mountain range, except for volcanoes. Small volcanoes can form in months, but big volcanoes also take tens of thousands of years or more.
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