Nella Rock

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Nella Rock ( 67°31′S62°51′E / 67.517°S 62.850°E / -67.517; 62.850 Coordinates: 67°31′S62°51′E / 67.517°S 62.850°E / -67.517; 62.850 ) is a reef sounding 4.57 m, situated 550 m from and bearing 81 from the eastern extremity of the largest of the Sawert Rocks, at the entrance to Holme Bay. Named by Antarctic Names Committee of Australia (ANCA). The rock was struck by the Nella Dan on 4 March 1969, on passage from Mawson Station to Melbourne. It is situated about 2 nautical miles west of the Canopus Rocks and 2 nautical miles southwest of the Hansen Rocks.

Geographic coordinate system Coordinate system

A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.

Sawert Rocks

Sawert Rocks is a group of rocks 4.6 kilometres (2.5 nmi) east-northeast of Azimuth Island, and about 3.7 kilometres (2 nmi) southwest of the Hansen Rocks, in the northeast part of Holme Bay, Mac. Robertson Land. Plotted from photos taken from ANARE aircraft in 1958. Named by Antarctic Names Committee of Australia (ANCA) for A. Sawert, radio officer at Mawson Station in 1959. Just to the east of the Sawert Rocks lies Nella Rock.

Holme Bay is a bay in Antarctica in Mac. Robertson Land, 22 miles (35 km) wide, containing many islands, indenting the coast 5 miles (8 km) north of the Framnes Mountains. Holme Bay is largely snow-free and was mapped by Norwegian cartographers from aerial photographs taken by the Lars Christensen Expedition in January-February 1937, and named Holmevika because of its island-studded character.

PD-icon.svg This article incorporates  public domain material from the United States Geological Survey document "Nella Rock" (content from the Geographic Names Information System ).

United States Geological Survey Scientific agency of the United States government

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, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility.

Geographic Names Information System geographical database

The Geographic Names Information System (GNIS) is a database that contains name and locative information about more than two million physical and cultural features located throughout the United States of America and its territories. It is a type of gazetteer. GNIS was developed by the United States Geological Survey in cooperation with the United States Board on Geographic Names (BGN) to promote the standardization of feature names.


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