Borda Rock (Bulgarian: скала Борда, romanized: skala Borda, IPA: [skɐˈla borˈda]) is the rock off the NW coast of Smith Island in the South Shetland Islands, Antarctica 270 m long in southwest-northeast direction and 90 m wide (extending 543 by 175 m together with the adjacent minor rocks). Its surface area is 1.46 ha. The vicinity was visited by early 19th century sealers.^[1]

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Borda Rock

Location of Smith Island in the South Shetland Islands
Borda Rock Location of Borda Rock Show map of Antarctica Borda Rock Borda Rock (South Shetland Islands) Show map of South Shetland Islands
Geography
Location	Antarctica
Coordinates	62°55′01.6″S 62°32′15″W
Archipelago	South Shetland Islands
Area	1.46 ha (3.6 acres)
Length	270 m (890 ft)
Width	90 m (300 ft)
Administration
Administered under the Antarctic Treaty
Demographics
Population	uninhabited

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The feature is named after Jean-Charles de Borda (1733-1799), a French mathematician, physicist and Navy officer who refined the reflecting circle; in association with other names in the area deriving from the early development or use of geodetic instruments and methods.

Borda Rock is located at 62°55′01.6″S 62°32′15″W,^[2] which is 240 m northwest of Gregory Point. Bulgarian mapping in 2009 and 2017.

• List of Antarctic and subantarctic islands

• L. Ivanov. Antarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands. 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)
• South Shetland Islands: Smith and Low Islands. Scale 1:150000 topographic map No. 13677. British Antarctic Survey, 2009
• L. Ivanov. Antarctica: Livingston Island and Smith Island. Scale 1:100000 topographic map. Manfred Wörner Foundation, 2017. ISBN 978-619-90008-3-0
• Antarctic Digital Database (ADD). Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly upgraded and updated