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Thomas Glacier
Location of Sentinel Range in Western Antarctica.
Location of Thomas Glacier in Antarctica
Location Vinson Massif
Sentinel Range
Coordinates 78°40′S 84°0′W / 78.667°S 84.000°W / -78.667; -84.000
Length 17 nmi (31 km; 20 mi)
Thickness unknown
Status unknown
Central and southern Sentinel Range map.

Thomas Glacier (78°40′S 84°0′W / 78.667°S 84.000°W / -78.667; -84.000Coordinates: 78°40′S 84°0′W / 78.667°S 84.000°W / -78.667; -84.000) is a roughly Z-shaped glacier which drains the southeast slopes of Vinson Massif and flows for 17 nautical miles (31 km) through the south part of the Sentinel Range, Ellsworth Mountains, leaving the range between Doyran and Petvar Heights south of Johnson Spur.

The glacier was discovered by U.S. Navy Squadron VX-6 on photographic flights of December 14–15, 1959, and mapped by United States Geological Survey (USGS) from the photos. It was named by Advisory Committee on Antarctic Names (US-ACAN) for R. Admiral Charles W. Thomas, USCG, veteran of Antarctic expeditions in the 1950s.

Tributaries glaciers


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