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The Hogan Group is a collection of six (to eight)
island An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An isla ...
s and
islet An islet is a very small, often unnamed island. Most definitions are not precise, but some suggest that an islet has little or no vegetation and cannot support human habitation. It may be made of rock, sand and/or hard coral; may be permanen ...
s located in the Bass Strait that define part of the border between mainland
Australia Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. With an area of , Australia is the largest country by ...
and the island state of
Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...
. Within the jurisdiction of Tasmania, the Hogan Group forms a land border between the states of Tasmania and
Victoria Victoria most commonly refers to: * Victoria (Australia), a state of the Commonwealth of Australia * Victoria, British Columbia, provincial capital of British Columbia, Canada * Victoria (mythology), Roman goddess of Victory * Victoria, Seychelle ...
. The island group is officially designated unallocated
Crown land Crown land (sometimes spelled crownland), also known as royal domain, is a territorial area belonging to the monarch, who personifies the Crown. It is the equivalent of an entailed estate and passes with the monarchy, being inseparable from it ...
, within the Flinders Municipality in Tasmania and the
South Gippsland Shire The Shire of South Gippsland is a local government area in Victoria, Australia, located in the south-eastern part of the state. It covers an area of and, in June 2018, had a population of 29,576. It includes the towns of Leongatha, Korumburra ...
in Victoria. The Hogan Group comprises the
Hogan Island Hogan Island, the largest island of the Hogan Group, is a granite island, located in northern Bass Strait, that lies between the Furneaux Group in north-east Tasmania, and Wilsons Promontory in Victoria, Australia. The island has a maximum ele ...
,
Twin Twins are two offspring produced by the same pregnancy.MedicineNet > Definition of TwinLast Editorial Review: 19 June 2000 Twins can be either ''monozygotic'' ('identical'), meaning that they develop from one zygote, which splits and forms two em ...
,
Long Long may refer to: Measurement * Long, characteristic of something of great duration * Long, characteristic of something of great length * Longitude (abbreviation: long.), a geographic coordinate * Longa (music), note value in early music mensu ...
,
Round Round or rounds may refer to: Mathematics and science * The contour of a closed curve or surface with no sharp corners, such as an ellipse, circle, rounded rectangle, cant, or sphere * Rounding, the shortening of a number to reduce the number ...
,
East East or Orient is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sun rises on the Earth. Etymology As in other languages, the word is formed from the fac ...
,
Boundary Boundary or Boundaries may refer to: * Border, in political geography Entertainment * ''Boundaries'' (2016 film), a 2016 Canadian film * ''Boundaries'' (2018 film), a 2018 American-Canadian road trip film *Boundary (cricket), the edge of the pla ...
(or North East) islets, and
Seal Rock A petroleum reservoir or oil and gas reservoir is a subsurface accumulation of hydrocarbons contained in porous or fractured rock formations. Such reservoirs form when kerogen (ancient plant matter) is created in surrounding rock by the presence ...
.


Location and geography

The Hogan Group is located southeast of
Wilsons Promontory Wilsons Promontory, is a peninsula that forms the southernmost part of the Australian mainland, located in the state of Victoria. South Point at is the southernmost tip of Wilsons Promontory and hence of mainland Australia. Located at nea ...
in the Bass Strait. The islands are made up of grey and red granite and limestone. A group of
fur seals Fur seals are any of nine species of pinnipeds belonging to the subfamily Arctocephalinae in the family '' Otariidae''. They are much more closely related to sea lions than true seals, and share with them external ears (pinnae), relatively lon ...
live on Boundary Islet. Other plants and animals that live on and near the island group include '' Cystophora intermedia'', eelgrass, kelp, and
abalone Abalone ( or ; via Spanish , from Rumsen ''aulón'') is a common name for any of a group of small to very large marine gastropod molluscs in the family Haliotidae. Other common names are ear shells, sea ears, and, rarely, muttonfish or mutto ...
.


History

During the
Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fina ...
period, the Hogan Group was part of a land bridge that connected Tasmania to mainland Australia. After the glacial period ended, the Hogan Group were the first group of islands to become isolated by
rising sea levels Rising may refer to: * Rising, a stage in baking - see Proofing (baking technique) *Elevation * Short for Uprising, a rebellion Film and TV * "Rising" (''Stargate Atlantis''), the series premiere of the science fiction television program ''Starg ...
. The Hogan Group was discovered by Europeans and named in 1801 by John Black, captain of the brig ''
Harbinger A harbinger is a forerunner or forewarning, but may also refer to: Companies * Harbinger Corp., an Internet-oriented business * Harbinger Capital, a hedge fund * Harbinger Knowledge Products, an eLearning products and content services compan ...
'', who named the island group after Michael Hogan, the owner of his ship. There are records of settlers on the island group, who hunted seals and kangaroos and used the islands for grazing land. On 12 October 1900, the first lease was recorded and given for Hogan Island. While the original lease covered the entire island group, since 1959 the lease has only applied to Hogan Island, which has been leased by B.R. Stackhouse since 1967, who uses the island for sheep and cattle grazing. Black erred in his initial survey, placing the group further north than they actually are, which led to the Victoria-Tasmania land border on Boundary Islet.


See also

*
List of islands of Tasmania Tasmania is the smallest and southernmost state of Australia. The Tasmanian mainland itself is an island, with an area of - 94.1% of the total land area of the state. The other islands have a combined area of , for a cumulative total of 99.75% o ...


References

{{Islands of Tasmania , state=collapsed Islands of North East Tasmania Islands of Bass Strait Islands of Victoria (state) Borders of Tasmania Borders of Victoria (state)