In its southern extreme, the Antarctic Peninsula stretches west, with Palmer Land eventually bordering Ellsworth Land along the 80° W line of longitude. Palmer Land is bounded in the south by the ice-covered Carlson Inlet, an arm of the Filchner-Ronne Ice Shelf, which crosses the 80° W line. This is the base of Cetus Hill.
This feature is named after Nathaniel Palmer, an American sealer who explored the Antarctic Peninsula area southward of Deception Island in the sloop Hero in November 1820.[1]