Havre Mountains are mountains forming the northwest extremity of Alexander Island

Alexander Island

Alexander Island or Alexander I Island or Alexander I Land or Alexander Land is the largest island of Antarctica, with an area of lying in the Bellingshausen Sea west of the base of the Antarctic Peninsula, from which it is separated by Marguerite Bay and George VI Sound. Alexander Island lies off...

, extending 20 nautical miles (37 km) in an east-west direction between Cape Vostok

Cape Vostok

Cape Vostok is a rocky mass which forms the west extremity of the Havre Mountains and the northwest extremity of Alexander Island. First seen by the Russian expedition of 1821 under Bellingshausen. Mapped in detail from air photos taken by the Ronne Antarctic Research Expedition , 1947–48, by...

 and Russian Gap

Russian Gap

Russian Gap is a gap extending in a north-south direction between the Havre Mountains and Rouen Mountains, in the north part of Alexander Island. The north coast of Alexander Island was first sketched from a great distance in 1821 by the Russian expedition under Bellingshausen and this gap...

. First seen in 1821 by a Russian expedition under Bellingshausen and resighted by the Belgian Antarctic Expedition

Belgian Antarctic Expedition

The Belgian Antarctic Expedition of 1897 to 1899, named after its expedition vessel Belgica, was the first expedition to winter in the Antarctic region.- Preparation and Surveying :...

, 1897-99. They were roughly charted by the French Antarctic Expedition

French Antarctic Expedition

French Antarctic Expedition refers to several French expeditions in Antarctica.-First expedition:Yves-Joseph de Kerguelen-Trémarec was a French explorer....

, 1908–10, under Charcot, who named them for Le Havre

Le Havre

Le Havre is a city in the Seine-Maritime department of the Haute-Normandie region in France. It is situated in north-western France, on the right bank of the mouth of the river Seine on the English Channel. Le Havre is the most populous commune in the Haute-Normandie region, although the total...

, French port from which the Pourquol Pas? sailed in 1908. The mountains were mapped in detail from air photos taken by the Ronne Antarctic Research Expedition

Ronne Antarctic Research Expedition

The Ronne Antarctic Research Expedition was an expedition from 1947-1948 which researched the area surrounding the head of the Weddell Sea in Antarctica.-Background:...

 (RARE), 1947–48, by Searle of the Falkland Islands Dependencies Survey (FIDS) in 1960.