Buckle Island
.
Elevation Elevation The elevation of a geographic location is its height above a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface .... :	1239 m (4,065 ft)
Coordinates:	66.80°S 163.25°E
Location:	Subantarctic island
Type:	Stratovolcano Stratovolcano A stratovolcano, also known as a composite volcano, is a tall, conical volcano built up by many layers of hardened lava, tephra, pumice, and volcanic ash. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile and periodic, explosive eruptions...
Last eruption:	1899
First ascent First ascent In climbing, a first ascent is the first successful, documented attainment of the top of a mountain, or the first to follow a particular climbing route... :	Unknown
Easiest route Mountaineering Mountaineering or mountain climbing is the sport, hobby or profession of hiking, skiing, and climbing mountains. While mountaineering began as attempts to reach the highest point of unclimbed mountains it has branched into specialisations that address different aspects of the mountain and consists... :	Unknown

Buckle Island (66°39′S 163°3′E) is one of the three main islands in the uninhabited Balleny Islands

Balleny Islands

The Balleny Islands are a series of uninhabited islands in the Southern Ocean extending from 66°15' to 67°35'S and 162°30' to 165°00'E. The group extends for about in a northwest-southeast direction. The islands are heavily glaciated and are of volcanic origin. Glaciers project from their slopes...

 group located in the Southern Ocean

Southern Ocean

The Southern Ocean comprises the southernmost waters of the World Ocean, generally taken to be south of 60°S latitude and encircling Antarctica. It is usually regarded as the fourth-largest of the five principal oceanic divisions...

. It lies 25 kilometres (15.5 mi) northwest of Sturge Island

Sturge Island

Sturge Island is one of the three main islands in the uninhabited Balleny Islands group located in the Southern Ocean. It lies southeast of Buckle Island and northeast of Belousov Point on the Antarctic mainland...

 and 8 kilometres (5 mi) southeast of Young Island

Young Island

Young Island is the northernmost and westernmost of the three main islands in the uninhabited Balleny Islands group located in the Southern Ocean...

, some 110 kilometres (68.4 mi) north-northeast of Belousov Point

Belousov Point

Belousov Point is an ice-covered headland forming the southern tip of the Anderson Peninsula, located just north of the terminus of Suvorov Glacier. It was mapped by the Soviet Antarctic Expedition of 1958 and named for the Soviet polar captain Mikhail P. Belousov, 1904–46....

 on the Antarctic mainland.

The island is roughly triangular in shape, with long east and west coasts and a short north coast. It is approximately 4 kilometres (2.5 mi) in width at the north, and its maximum length is 8 kilometres (5 mi). The island is of volcanic origin, and is still volcanically active, the last eruption being in 1899.

The northernmost point of Buckle Island is Cape Cornish. Several small islets also lie in the channel separating Cape Cornish and Young Island, the largest of which is Borradaile Island

Borradaile Island

Borradaile Island is one of the Balleny Islands. It was the site of the first landing south of the Antarctic Circle, and features the "remarkable pinnacle" called Beale Pinnacle, near Cape Beale on its south-eastern coast, and Cape Scoresby on its north-western coast.-Exploration:Borradaile Island...

. Several small islets lie off the island's southern extremity, Cape McNab, including Sabrina Islet and the 80 metres (262 ft) tall rock

Rock (geology)

In geology, rock or stone is a naturally occurring solid aggregate of minerals and/or mineraloids.The Earth's outer solid layer, the lithosphere, is made of rock. In general rocks are of three types, namely, igneous, sedimentary, and metamorphic...

 stack of The Monolith. Both Buckle Island and Sabrina Islet are home to colonies of Adelie

Adelie Penguin

The Adélie Penguin, Pygoscelis adeliae, is a species of penguin common along the entire Antarctic coast. They are among the most southerly distributed of all seabirds, as are the Emperor Penguin, the South Polar Skua, the Wilson's Storm Petrel, the Snow Petrel, and the Antarctic Petrel...

 and Chinstrap penguin

Chinstrap Penguin

The Chinstrap Penguin is a species of penguin which is found in the South Sandwich Islands, Antarctica, the South Orkneys, South Shetland, South Georgia, Bouvet Island and Balleny...

s.

The island forms some parts of the Ross Dependency

Ross Dependency

The Ross Dependency is a region of Antarctica defined by a sector originating at the South Pole, passing along longitudes 160° east to 150° west, and terminating at latitude 60° south...

, claimed by New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

 (see Antarctic territorial claims).

See also

• Antarctic Treaty System
  Antarctic Treaty System
  The Antarctic Treaty and related agreements, collectively called the Antarctic Treaty System or ATS, regulate international relations with respect to Antarctica, Earth's only continent without a native human population. For the purposes of the treaty system, Antarctica is defined as all of the land...
  
  
• Composite Antarctic Gazetteer
• List of Antarctic islands south of 60° S
• New Zealand Sub-Antarctic Islands
  New Zealand sub-antarctic islands
  The five southernmost groups of the New Zealand Outlying Islands form the New Zealand Sub-Antarctic islands. These islands are collectively designated as an UNESCO World Heritage Site....
  
  
• SCAR
  Scientific Committee on Antarctic Research
  The Scientific Committee on Antarctic Research is an interdisciplinary body of the International Council for Science . It was established in February 1958 to continue the international coordination of Antarctic scientific activities that had begun during the International Geophysical Year of 1957-58...
  
  
• Territorial claims in Antarctica