Russian Gap is a gap extending in a north-south direction between the Havre Mountains

Havre Mountains

Havre Mountains are mountains forming the northwest extremity of Alexander Island, extending 20 nautical miles in an east-west direction between Cape Vostok and Russian Gap. First seen in 1821 by a Russian expedition under Bellingshausen and resighted by the Belgian Antarctic Expedition, 1897-99...

 and Rouen Mountains

Rouen Mountains

The Rouen Mountains are a prominent mountain range, reaching about 2,800 m and extending 35 miles NW-SE from Mount Bayonne to Care Heights and Mount Cupola, in north Alexander Island, Antarctica....

, in the north part 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...

. The north coast of Alexander Island was first sketched from a great distance in 1821 by the Russian expedition under Bellingshausen and this gap apparently represented by one of two open spaces between three high features. The gap was 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. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) for the Russian group which observed this area in 1821.