Jacobsen Head is an ice-covered

headland A headland, also known as a head, is a coastal landform, a point of land usually high and often with a sheer drop, that extends into a body of water. It is a type of promontory. A headland of considerable size often is called a cape.Whittow, John ...

forming the northeastly point of

Slichter Foreland Martin Peninsula () is a peninsula about 96 km (60) mi long and 32 km (20 mi) wide that is ice-covered except for a few rock outcrops along its margins, located between Getz Ice Shelf and Dotson Ice Shelf on the coast of Marie Byr ...

, Martin Peninsula, on the

Walgreen Coast The Walgreen Coast () is a portion of the coast of Antarctica between Cape Herlacher and Cape Waite, or between Eights Coast on the east and Bakutis Coast in the west. It is part of Marie Byrd Land. It extends from 103°24'W to 114°12'W. It was ...

Marie Byrd Land Marie Byrd Land (MBL) is an unclaimed region of Antarctica. With an area of , it is the largest unclaimed territory on Earth. It was named after the wife of American naval officer Richard E. Byrd, who explored the region in the early 20th centur ...

, Antarctica. It was first delineated by the United States Geological Survey 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 January 1947, and 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 ...

after Commander

Glen Jacobsen A glen is a valley, typically one that is long and bounded by gently sloped concave sides, unlike a ravine, which is deep and bounded by steep slopes. Whittow defines it as a "Scottish term for a deep valley in the Highlands" that is "narrower ...

, U.S. Navy, captain of the icebreaker on the 1954–55 reconnaissance cruise to Antarctica to examine sites for use as science stations during the 1957–58

International Geophysical Year The International Geophysical Year (IGY; french: Année géophysique internationale) was an international scientific project that lasted from 1 July 1957 to 31 December 1958. It marked the end of a long period during the Cold War when scientific ...

References

Headlands of Marie Byrd Land {{MarieByrdLand-geo-stub