Canyon
A canyon or gorge was a geological term for describing a deep, narrow valley between cliffs.

Captain Jonathan Archer and Commander Tucker were up to explore a gorge on the southern continent of an uninhabited planet which was five times deeper than the Grand Canyon. ()

In 2254, the Enterprise transporter chief  beamed the landing party from the  into a canyon on Talos IV to hide them from the survivors of the crashed  on the planet. ()

Named 
 Grand Canyon (Earth)
 Tanis Canyon (Bajor)

See also 
 Canyon of the Rustler

External link 
 
Landforms