Delta Peak is a very sharp peak marking a pronounced corner point on Ackerman Ridge

Ackerman Ridge

Ackerman Ridge is a prominent rock ridge forming the northwest extremity of the La Gorce Mountains of the Queen Maud Mountains. Discovered and roughly mapped in December 1934 by the Byrd Antarctic Expedition geological party under Quin Blackburn. Named by Advisory Committee on Antarctic Names for...

, 6 nautical miles (11 km) northeast of Mount Gjertsen

Mount Gjertsen

Mount Gjertsen is a mountain, 2,420 m, standing 2 nautical miles northeast of Mount Grier in the La Gorce Mountains, Queen Maud Mountains. Discovered in December 1934 by the Byrd Antarctic Expedition geological party under Quin Blackburn, and so named in an attempt to reconcile Byrd's discoveries...

, in La Gorce Mountains

La Gorce Mountains

La Gorce Mountains is a group of mountains, 20 nautical miles long, standing between the tributary Robison and Klein Glaciers at the east side of the upper reaches of the Scott Glacier, in the Queen Maud Mountains...

. 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, 1960-64. So named by New Zealand Geological Survey Antarctic Expedition

New Zealand Geological Survey Antarctic Expedition

The New Zealand Geological Survey Antarctic Expedition describes a series of scientific explorations of the continent Antarctica. The expeditions were notably active in 1957-58 and again in 1958-59. The 1957-58 expedition went to the Ross Dependency and named the Borchgrevink Glacier...

(NZGSAE), 1969-70, because as seen from the south the colorful rock strata present a well visible form that is suggestive of the Greek letter "Delta."