Gruber Mountains is a small group of mountains consisting of a main massif and several rocky outliers, forming the northeast portion of the Wohlthat Mountains

Wohlthat Mountains

Wohlthat Mountains is a large group of associated mountain features consisting of the Humboldt Mountains, Petermann Ranges, and the Gruber Mountains, located immediately east of the Orvin Mountains in Fimbulheimen in the central Queen Maud Land. Discovered by the Third German Antarctic Expedition ,...

 in Queen Maud Land

Queen Maud Land

Queen Maud Land is a c. 2.7 million-square-kilometre region of Antarctica claimed as a dependent territory by Norway. The territory lies between 20° west and 45° east, between the British Antarctic Territory to the west and the Australian Antarctic Territory to the east. The latitudinal...

. Discovered and plotted from air photos by the German Antarctic Expedition, 1938–39, under Alfred Ritscher

Alfred Ritscher

Alfred Ritscher was a German polar explorer. A captain in the German Navy, he led the third German Antarctic Expedition in 1938-39, which mapped the New Swabia area of Queen Maud Land. Ritscher Peak and Ritscher Upland there are named for him.-External links:*...

. The mountains were remapped by Norwegian Antarctic Expedition

Sixth Norwegian Antarctic Expedition

The sixth Norwegian Antarctic Expedition was a scientific expedition to Queen Maud Land, intended as part of Norway's participation in the International Geophysical Year, 1957-58. The crew set sail from Oslo on board two whaling ships, the Polarsirkel and Polarbjørn, on November 10, 1956. They...

, 1956–60, who named them for Otto von Gruber, the German cartographer who compiled maps of this area from air photos taken by German Antarctic Expedition, 1938–39. This feature is not to be confused with "Gruber-Berge," an unidentified toponym applied by German Antarctic Expedition in northern Muhlig-Hofmann Mountains

Mühlig-Hofmann Mountains

The Mühlig-Hofmann Mountains is a major group of associated mountain features extending east to west for 65 miles between the Gjelsvik Mountains and the Orvin Mountains in Queen Maud Land, East Antarctica...

.