{{short description|Shoal in the South Shetland Islands, Antarctica}} {{Infobox islands | name = Chaos Reef | image_name = | image_caption = | map = Antarctica#Antarctic Peninsula | map_caption = Location of Chaos Reef | map_relief = yes | nickname = | location = Antarctica | coordinates = {{coord|62|21|50.6|S|59|46|11|W|}} | archipelago = South Shetland Islands | total_islands = | major_islands = | area_km2 = | length_km = | width_km = | highest_mount = | elevation_m = | population = uninhabited | population_as_of = | density_km2 = | ethnic_groups = | country = Antarctica | treaty_system = Antarctic Treaty System }} [[File:Livingston-Island-Map-2010.jpg|thumb|270px|Topographic map of Livingston, Greenwich, Robert, Snow and Smith Islands]] '''Chaos Reef''' is an area of breakers and turbulent water created by a series of underwater shoals in the north extremity of the Aitcho Islands group on the west side of English Strait in the South Shetland Islands, Antarctica. The area was visited by early 19th-century sealers operating from nearby Clothier Harbour.<ref name=General>L. Ivanov. [http://livingston-island.weebly.com/ General Geography and History of Livingston Island.] In: ''Bulgarian Antarctic Research: A Synthesis''. Eds. C. Pimpirev and N. Chipev. Sofia: St.&nbsp;Kliment Ohridski University Press, 2015. pp.&nbsp;17–28</ref> Following a survey by the 1949 Chilean Antarctic Expedition, the feature was resurveyed and descriptively named from HMS ''Protector'' in 1967.

==Location== Chaos Reef is located at {{coord|62|21|50.6|S|59|46|11|W|}}<ref>[https://data.aad.gov.au/aadc/gaz/scar/search_names_action.cfm?search_text=chaos+reef&feature_type_code=0&country_id=0&relic_options=include_relics&north=-45.0&south=-90.0&west=-180.0&east=180.0&search_near=&radius=0.5&gazetteers=SCAR&submit_btn=Start+search Chaos Reef.] SCAR Composite Antarctic Gazetteer</ref> which is {{convert|970|m|yd|0|abbr=on}} north-northwest from the midpoint of the Okol Rocks, {{convert|1.13|km|mi|abbr=on}} north-northeast of Kilifarevo Island, {{convert|1.48|km|mi|abbr=on}} east-northeast of Morris Rock, {{convert|1.26|km|mi|abbr=on}} southeast of Turmoil Rock, {{convert|3.96|km|mi|abbr=on}} southwest of Cornwall Island, and {{convert|2.45|km|mi|abbr=on}} west-northwest of Fort William on Robert Island (as determined by Chilean surveys in 1949–1950 and 1971; British in 1968, 1972 and 1990; and Bulgarian in 2009).

== See also == * Composite Antarctic Gazetteer * List of Antarctic and sub-Antarctic islands * List of Antarctic islands south of 60° S * SCAR * Territorial claims in Antarctica

==Maps== * L.L. Ivanov. [http://apcbg.org/image023.jpg Antarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands.] Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2009. {{ISBN|978-954-92032-6-4}}

==Notes== {{reflist}}

==References== * [https://data.aad.gov.au/aadc/gaz/scar/search_names_action.cfm?search_text=chaos+reef&feature_type_code=0&country_id=0&relic_options=include_relics&north=-45.0&south=-90.0&west=-180.0&east=180.0&search_near=&radius=0.5&gazetteers=SCAR&submit_btn=Start+search Chaos Reef.] SCAR Composite Antarctic Gazetteer

== External links == * [https://copernix.io/#?where=-59.77169610583498,-62.364842291064924,16&?query=&?map_type=hybrid Chaos Reef.] Adjusted Copernix satellite image

{{Portalbar|Islands|Geography}} {{South Shetlands}} {{Antarctica topics}}

Category:Landforms of Greenwich Island Category:Reefs of Antarctica Category:Landforms of the South Shetland Islands

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