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The Rupes Nigra ("Black Rock"), a phantom island, was believed to be a black rock located at the Magnetic North Pole or at the geographic North Pole itself. Described by Gerardus Mercator as 33 French miles in size, it provided a supposed explanation for why all compasses point to this location.
Inventio Fortunata (also Inventio Fortunate, Inventio Fortunat or Inventio Fortunatae), "Fortunate, or fortune-making, discovery", is a lost book, probably dating from the 14th century, containing a description of the North Pole as a magnetic island (the Rupes Nigra) surrounded by a giant whirlpool and four continents.
Mount Qaf in Arabic tradition is a mysterious mountain renowned as the furthest point of the earth owing to its location at the far side of the ocean encircling the earth. Because of its remoteness, the North Pole is sometimes identified with this mountain.
Castelnuovo Nigra, a comune (municipality) in the Province of Turin in the Italian region Piedmont; Porta Nigra, a large Roman city gate in Trier, Germany; Rupes Nigra, a phantom island, was believed to be a 33-mile-wide magnetic island of black rock located at the Magnetic North Pole
van Raemdonck, J (1869), Gerard Mercator, Sa vie et ses oeuvres, St Niklaas {}: CS1 maint: location missing publisher van 't Hoff, Bert and editors of Imago Mundi (1961), Gerard Mercator's map of the world (1569) in the form of an atlas in the Maritime Museum Prins Hendrik at Rotterdam, reproduced on the scale of the original , Rotterdam/'s ...
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Rupes / ˈ r uː p ɪ s / (plural / ˈ r uː p iː z /) [1] is the Latin word for 'cliff'. It is used in planetary geology to refer to escarpments on other worlds. As of January 2013, the IAU has named 62 such features in the Solar System, on Mercury (17), Venus (7), the Moon (8), Mars (23), the asteroids Vesta (2) and Lutetia (2), and Uranus's satellites Miranda (2) and Titania (1).
Some may have been purely mythical, such as the Isle of Demons near Newfoundland, which may have been based on local legends of a haunted island.The far-northern island of Thule was reported to exist by the 4th-century BC Greek explorer Pytheas, but information about its purported location was lost; explorers and geographers since have speculated that it was the Shetland Islands, Iceland ...