Major components include Ford Massif (2,810 metres (9,220 ft)), Bermel Escarpment and a group of eastern peaks near Nolan Pillar.

[4] As of 2009, Adventure Network International/Antarctic Logistics & Expeditions (ANI/ALE) was the only member of the International Association of Antarctica Tour Operators (IAATO) that provided land-based tourism activities of any extent in the Antarctic.

"[8] Visitors in December 2011 travelling in a Twin Otter from Union Glacier to the South Pole landed close to Thiel Mountains at 85°12′S 087°52′W / 85.200°S 87.867°W / -85.200; -87.867 to refuel on the way.

Named by US-ACAN after William W. Chastain, Aviation Structural Mechanic, United States Navy, who lost his life in the crash of a P2V Neptune aircraft soon after takeoff from Wilkes Station, Nov. 9, 1961.

Named after William E. Davies, USGS geologist aboard the icebreaker Atka in the Antarctic reconnaissance cruise of 1954-55 in search of station sites for use during the International Geophysical Year.

The name was proposed by Peter Bermel and Arthur Ford, co-leaders of the USGS Thiel Mountains party which surveyed the area in 1960-61.

Named for Charles R. Lewis, USGS geologist who worked from various U.S. vessels (Wyandot, Glacier and Eastwind) in conducting research in the McMurdo Sound region and in the Balaena Islands during the 1955-56 season.

The name was proposed by Thiel and Craddock for Wayne Sonntag, Operations Director at the Geophysical Institute, University of Wisconsin, 1959–61, logistics officer for the airlifted traverse.

Several small nunataks and snow hills rising above an otherwise featureless terrain, 50 nautical miles (93 km; 58 mi) northeast of Ford Massif.

The name was proposed by Thiel and Craddock for Prof. Duncan Stewart, geologist, Carleton College, Minnesota, whose writing and interpretation of Antarctic rock samples have contributed to knowledge of the continent.

Named by US-ACAN after Chief Warrant Officer Gerald Pagano (d.1981), USA, assistant for plans and operations on the staff of the Commander, U.S.