Medea Dome is a snow dome, 350 m, marking the east end of Philippi Rise

Philippi Rise

Philippi Rise is a low, snow-covered promontory 7 nautical miles wide and extending some 10 nautical miles southeast from the east coast of Graham Land. The ice surface is highest in the west, where it rises to about 395 m and is broken by Borchgrevink and Gemini Nunataks...

 on the east coast of Graham Land

Graham Land

Graham Land is that portion of the Antarctic Peninsula which lies north of a line joining Cape Jeremy and Cape Agassiz. This description of Graham Land is consistent with the 1964 agreement between the British Antarctic Place-names Committee and the US Advisory Committee on Antarctic Names, in...

. Surveyed by the Falkland Islands Dependencies Survey (FIDS) in 1953. Named in 1956 by the United Kingdom Antarctic Place-Names Committee (UK-APC) in association with Jason Peninsula

Jason Peninsula

Jason Peninsula is a large peninsula on the east coast of Graham Land comprising several mainly snow-covered summits. It rises above Larsen Ice Shelf and extends from the narrow neck of land east of Medea Dome for 42 miles, terminating in Cape Framnes...

. Medea helped Jason to obtain the golden fleece and later became his wife.