Scientific Committee on Antarctic Research (SCAR) Standing Committee on Antarctic Geographic Information (SC-AGI). 1998. Composite Gazetteer of Antarctica (CGA). Rome, Italy: Programma Nazionale di Ricerche in Antartide (PNRA), in association with the Australian Antarctic Data Centre (AADC). Digital media. Accessed 16 May 2008.
Class name: elevated features - g
Examples: Canyon, Gorge, Gully, Valley