Welch Mountains is a group of mountains that dominate the area, the highest peak

Summit (topography)

In topography, a summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. Mathematically, a summit is a local maximum in elevation...

 rising to 3,015 m, located 25 nautical miles (46 km) north of Mount Jackson

Mount Jackson (Antarctica)

Mount Jackson is a massive mountain that dominates the upland in the southern part of the Antarctic Peninsula. It rises to a majestic summit peak on south and east, while the north flank is occupied by a vast cirque. Alternate names for the mountain include Mount Andrew Jackson and Mount Ernest...

 on the east margin of the Dyer Plateau

Dyer Plateau

Dyer Plateau is a broad ice-covered upland of north-central Palmer Land, bounded to the north by Fleming Glacier and Bingham Glacier, and to the south by the Gutenko Mountains. The plateau was first explored on land and photographed from the air by the US Antarctic Service , 1939-41. Named after...

 of Palmer Land

Palmer Land

Palmer Land is that portion of the Antarctic Peninsula which lies south of a line joining Cape Jeremy and Cape Agassiz. This application of Palmer Land is consistent with the 1964 agreement between US-ACAN and UK-APC, in which the name Antarctic Peninsula was approved for the major peninsula of...

. These mountains were probably seen from the air by Ellsworth in 1935 and their north extremities were sketched in 1936 by a British Graham Land Expedition

British Graham Land Expedition

A British expedition to Graham Land led by John Lachlan Cope took place between 1920 and 1922. The British Graham Land Expedition was a geophysical and exploration expedition to Graham Land in Antarctica between 1934 to 1937. Under the leadership of John Riddoch Rymill, the expedition spent two...

 (BGLE) sledge party under Rymill. In 1940 they were photographed from the air and charted from the ground by the United States Antarctic Service (USAS), and in the expedition reports and charts were assumed to be Ellsworth's Eternity Range

Eternity Range

Eternity Range is a range of mountains 28 miles long, rising 2,860 m, and trending north-south approximately in the middle of the Antarctic Peninsula....

. The mountains were mapped in detail by United States Geological Survey

United States Geological Survey

The United States Geological Survey is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology,...

 (USGS) in 1974. Named by Advisory Committee on Antarctic Names

Advisory Committee on Antarctic Names

The Advisory Committee on Antarctic Names is an advisory committee of the United States Board on Geographic Names responsible for recommending names for features in Antarctica...

 (US-ACAN) for R. Admiral David F. Welch, Commander, U.S. Naval Support Force, Antarctica, 1969-71.