Mount Twiss () is a peak (2,000 m) at the north end of

Watlack Hills Watlack Hills () is a line of mainly ice-free hills, 10 nautical miles (18 km) long, bounded by the White Escarpment, Splettstoesser Glacier, and Dobbratz Glacier, in the Heritage Range. Named by the University of Minnesota Geological P ...

in the

Heritage Range The Heritage Range is a major mountain range, long and wide, situated southward of Minnesota Glacier and forming the southern half of the Ellsworth Mountains in Antarctica. The range is complex, consisting of scattered ridges and peaks of mod ...

, Ellsworth Mountains. It was mapped by the

United States Geological Survey The United States Geological Survey (USGS), formerly simply known as the 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, ...

(USGS) from ground surveys and U.S. Navy air photos from 1961 to 1966. It was named by the

Advisory Committee on Antarctic Names The Advisory Committee on Antarctic Names (ACAN or US-ACAN) is an advisory committee of the United States Board on Geographic Names responsible for recommending commemorative names for features in Antarctica. History The committee was established ...

(US-ACAN) after John R. Twiss, Jr. Twiss served on the support staff at

McMurdo Station McMurdo Station is a United States Antarctic research station on the south tip of Ross Island, which is in the New Zealand-claimed Ross Dependency on the shore of McMurdo Sound in Antarctica. It is operated by the United States through the Unit ...

from 1961 to 1963, was a

United States Antarctic Research Program The United States Antarctic Program (or USAP; formerly known as the United States Antarctic Research Program or USARP and the United States Antarctic Service or USAS) is an organization of the United States government which has presence in the A ...

(USARP) Representative at McMurdo Station in the 1964–65 season, a USARP Representative on USNS Eltanin Cruise 34 in 1968, staff of the

National Science Foundation The National Science Foundation (NSF) is an independent agency of the United States government that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National I ...

(NSF) International Decade of Ocean Exploration from 1970 to 1974, and executive director of the Marine Mammal Commission from 1974.Mount Twiss
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References

Ellsworth Mountains Mountains of Ellsworth Land {{EllsworthLand-geo-stub