Flesa Rock is an isolated rock lying east of the northeast end of the Borg Massif, in Queen Maud Land, Antarctica. It was mapped by Norwegian cartographers from surveys and air photos by the NorwegianâÂÂBritishâÂÂSwedish Antarctic Expedition (1949âÂÂ52) and from air photos by the Norwegian expedition (1958âÂÂ59) and named Flesa (the low-lying islet).