Canyons

Definition (http://en.wikipedia.org/wiki/Gorge#List_of_gorges)

A canyon or gorge is a deep ravine between pairs of escarpments or cliffs and is most often carved from the landscape by the erosive activity of a river over geologic timescales. (Wikipedia)

Preferred Units: N/A

Scope Note:
N/A

This term is used for the following terms: 
Gorges

Approved Date
11-Dec-2013

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