Mount Twiss

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Mount Twiss is a 2000 m high mountain at the northern end of the Watlack Hills in the West Antarctic Heritage Range. To the west lies the terrain level White Escarpment and Navigator Peak.

Mount Twiss was mapped by United States Geological Survey as part of the compilation of Ellsworthgebirges in the years 1961-66 by site surveys and aerial photographs of the United States Navy. The Advisory Committee on Antarctic Names named the mountain after John R. Twiss Jr. († 2009 at the age of 71 years ). Twiss worked as a representative of the United States Antarctic Research Program 1961-63 to McMurdo Station and in 1968 on the research ship Eltanin. He later became executive director of the Marine Mammal Commission, a U.S. government agency.