Sinker Rock

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Sinker Rock ( 64°49′S63°30′W / 64.817°S 63.500°W / -64.817; -63.500 Coordinates: 64°49′S63°30′W / 64.817°S 63.500°W / -64.817; -63.500 ) is a rock off the north tip of Goudier Island, near the center of the harbor of Port Lockroy, in the Palmer Archipelago. Rocks were charted in this position by the French Antarctic Expedition, 1903–05, under Charcot. So named by the Falkland Islands Dependencies Survey (FIDS) in 1944 because a sinker was laid near this rock for a boat mooring.

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.

Goudier Island is a small island with an appearance of bare, polished rock, lying 0.05 nautical miles (0.1 km) north of Jougla Point in the harbor of Port Lockroy, Wiencke Island, in the Palmer Archipelago. It was discovered by the French Antarctic Expedition, 1903–05, under Jean-Baptiste Charcot, and named after E. Goudier, chief engineer of the expedition ship Français.

Port Lockroy former research station in Antarctica, now operated as a museum

Port Lockroy is a natural harbour on the north-western shore of Wiencke Island in the Palmer Archipelago in front of the Antarctic Peninsula. The Antarctic base includes the most southerly operational post office in the world.

PD-icon.svg This article incorporates  public domain material from the United States Geological Survey document "Sinker 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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