# Troughton Rocks

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**Troughton Rocks** (Bulgarian: скали Трутън, skɐˈli ˈtrutən) are the group of rocks off the northwest extremity of [Snow Island](/source/Snow_Island_(South_Shetland_Islands)) in the [South Shetland Islands](/source/South_Shetland_Islands), [Antarctica](/source/Antarctica) lying in an aquatory of 27 ha that is 315 m long in east-west direction and 120 m wide. The vicinity was visited by early 19th century [sealers](/source/Seal_hunting).[1]

The feature is named after [Edward Troughton](/source/Edward_Troughton) (1753-1835), a British instrument maker who improved the [theodolite](/source/Theodolite) design; in association with other names in the area deriving from the early development or use of [geodetic](/source/Geodesy) instruments and methods.

## Location

Troughton Rocks are centred at [62°44′42″S 61°33′23″W](https://geohack.toolforge.org/geohack.php?params=62_44_42_S_61_33_23_W),[2] which is 2.7 km west-northwest of [Byewater Point](/source/Byewater_Point). British mapping in 1968.

## See also

- [List of Antarctic and subantarctic islands](/source/List_of_Antarctic_and_subantarctic_islands)

## Maps

- [South Shetland Islands.](https://data.aad.gov.au/aadc/mapcat/display_map.cfm?map_id=5657) Scale 1:200000 topographic map. DOS 610 Sheet W 62 60. Tolworth, UK, 1968
- L. Ivanov. [Antarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands.](https://commons.wikimedia.org/wiki/File%3ALivingston-Island-Map-2010.jpg) Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2010. ISBN 978-954-92032-9-5 (First edition 2009. ISBN 978-954-92032-6-4)
- [Antarctic Digital Database (ADD).](http://www.add.scar.org) Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly upgraded and updated

## Notes

1. L. Ivanov. [General Geography and History of Livingston Island.](http://livingston-island.weebly.com/) In: *Bulgarian Antarctic Research: A Synthesis*. Eds. C. Pimpirev and N. Chipev. Sofia: St. Kliment Ohridski University Press, 2015. pp. 17–28

1. [Bulgarian Antarctic Gazetteer.](https://apcbg.org/gazet.pdf) Antarctic Place-names Commission

## References

- [Bulgarian Antarctic Gazetteer.](https://apcbg.org/gazet-bg.pdf) [Antarctic Place-names Commission](/source/Antarctic_Place-names_Commission). (details in Bulgarian, [basic data](https://apcbg.org/gazet.pdf) in English)

## External links

- [Troughton Rocks.](https://copernix.io/#?where=-61.55807575966644,-62.745046993340445,17&?query=&?map_type=hybrid) Adjusted Copernix satellite image

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