The Portal (located at ) is the gap between the Lashly Mountains and Portal Mountain, through which the main stream of the Skelton Glacier enters the Skelton Névé from the polar plateau. The descriptive name [1] was given in January 1958 by a New Zealand party of the Commonwealth Trans-Antarctic Expedition (CTAE), 1956-58.
1. USGS Geographic Names Information System (GNIS) (http://geonames.usgs.gov)