Thread: Difference between a hill and a mountain?
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Old 07-02-08 | 08:07 PM
  #9  
johnny99
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Joined: Apr 2005
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From: Northern California
I've heard the 2000 foot definition, too. Mountains are 2000 feet taller than the surrounding valleys.

According to the USGS, there was once a 1000 foot definition, but that is no longer used (except in the movies):
http://www.usgs.gov/faq/list_faq_by_...wer.asp?id=787
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