Lyon Nunataks is a group of 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...

s including 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....

, Holtet Nunatak

Holtet Nunatak

Holtet Nunatak is a nunatak rising to about 1,300 m, 2 nautical miles northeast of Grossenbacher Nunatak in the Lyon Nunataks, Palmer Land. Mapped by United States Geological Survey from aerial photographs taken by the U.S. Navy, 1965–68, and from Landsat imagery taken 1973-74. Named in 1987 by...

, Christoph Nunatak

Christoph Nunatak

Christoph Nunatak is a nunatak rising to about , east-northeast of Holtet Nunatak in the Lyon Nunataks. It was mapped by the United States Geological Survey from U.S. Navy aerial photographs taken 1965–68 and Landsat imagery taken 1973–74. It was named by the Advisory Committee on Antarctic Names...

 and Isakson Nunatak

Isakson Nunatak

Isakson Nunatak is a nunatak rising to about 1,300 m, 1.5 miles southeast of Christoph Nunatak in the Lyon Nunataks, Palmer Land. Mapped by United States Geological Survey from surveys and U.S. Navy aerial photographs, 1961-68, and Landsat imagery, 1973-74. Named by Advisory Committee on...

, lying west of Grossman Nunataks

Grossman Nunataks

Grossman Nunataks is a group of about a dozen nunataks in Palmer Land, rising 1,300-1,500 m in elevation and running NW-SE for 18 nautical miles between Lyon Nunataks and Sky-Hi Nunataks. The group includes features from Smith Nunataks and Whitmill Nunatak in the northwest to Gaylord Nunatak and...

 and 30 nautical miles (60 km) northwest of the Behrendt Mountains

Behrendt Mountains

The Behrendt Mountains is a group of mountains, 32 km long, aligned in the form of a horseshoe with the opening to the southwest, standing 11 km SW of Merrick Mountains at the base of the Antarctic Peninsula. Discovered and photographed from the air by the RARE, 1947-48, under Finn...

, in 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 surveys and U.S. Navy air photos, 1961-67. Named 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 Owen R. Lyon, hospital corpsman, U.S. Navy, chief petty officer in charge of Eights Station in 1965.