Williams Nunatak () is a small coastal
nunatak
A nunatak (from Inuit ''nunataq'') is the summit or ridge of a mountain that protrudes from an ice field or glacier that otherwise covers most of the mountain or ridge. They are also called glacial islands. Examples are natural pyramidal peaks. ...
just east of the
Windmill Islands
The Windmill Islands are an Antarctic group of rocky islands and rocks about wide, paralleling the coast of Wilkes Land for immediately north of Vanderford Glacier along the east side of Vincennes Bay. Kirkby Shoal is a small shoal area with de ...
, standing at the south side of the terminus of
Peterson Glacier
Peterson Glacier is a glacier flowing west into Penney Bay opposite Herring Island in the Windmill Islands. Mapped from aerial photographs taken by U.S. Navy (USN) OpHjp, 1946–47, and named for Louie N. Peterson, radio operator and recorder w ...
where it faces on
Penney Bay
Penney Bay is a large bay extending from Robinson Ridge to Browning Peninsula, at the eastern side of the Windmill Islands. First mapped from air photos taken by U.S. Navy (USN) OpHjp, 1946–47. Named by Advisory Committee on Antarctic Names (US ...
. First mapped from air photos taken by
U.S. Navy Operation Highjump
Operation HIGHJUMP, officially titled The United States Navy Antarctic Developments Program, 1946–1947, (also called Task Force 68), was a United States Navy (USN) operation to establish the Antarctic research base Little America IV. The opera ...
in February 1947. 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) for
Calvin E. Williams, member of one of the two
U.S. Navy Operation Windmill
Operation Windmill (OpWml) was the United States Navy's Second Antarctica Developments Project, an exploration and training mission to Antarctica in 1947–1948. This operation was a follow-up to the First Antarctica Development Project known as O ...
photographic units which obtained ground and aerial photographic coverage of this area in January 1948.
Nunataks of Wilkes Land
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