Holtet Nunatak is a nunatak

Nunatak

A nunatak is an exposed, often rocky element of a ridge, mountain, or peak not covered with ice or snow within an ice field or glacier. The term is typically used in areas where a permanent ice sheet is present...

 rising to about 1,300 m, 2 nautical miles (3.7 km) northeast of Grossenbacher Nunatak

Grossenbacher Nunatak

Grossenbacher Nunatak is a nunatak at the southwest end of Lyon Nunataks, Palmer Land, 2 nautical miles southwest of Holtet Nunatak. Named by Advisory Committee on Antarctic Names after Ernest P. Grossenbacher, upper atmospheric physicist, Siple Station, 1970-71....

 in the Lyon Nunataks

Lyon Nunataks

Lyon Nunataks is a group of nunataks including Grossenbacher Nunatak, Holtet Nunatak, Christoph Nunatak and Isakson Nunatak, lying west of Grossman Nunataks and 30 nautical miles northwest of the Behrendt Mountains, in Palmer Land. Mapped by United States Geological Survey from surveys and U.S....

, 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...

. Mapped 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) from aerial photographs taken by the U.S. Navy, 1965–68, and from Landsat imagery taken 1973-74. Named in 1987 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) after Jan A. Holtet of the Norwegian Institute of Cosmic Physics, upper atmospheric physicist at Siple Station

Siple Station

Siple Station, Antarctica was a research station in Antarctica , established in 1973 by Stanford's STAR Lab, to perform experiments that actively probed the magnetosphere using very low frequency waves...

, 1970-71.