Mount Sisu is a

mountain A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited Summit (topography), summit area, and ...

in the

Antarctic The Antarctic ( or , American English also or ; commonly ) is a polar region around Earth's South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises the continent of Antarctica, the Kerguelen Plateau and other ...

. Finnish mountaineers

Veikka Gustafsson Eero Veikka Juhani Gustafsson, known as Veikka Gustafsson (born 14 January 1968) is a Finnish mountaineer who has ascended all 14 eight-thousanders in the world without the use of supplemental oxygen. He is also known for presenting a TV travel ...

and Patrick Degerman were the first people to ascend it, in 1997. It was named after the Finnish concept of ''

sisu SiSU (SiSU information structuring universe or Structured information, serialized units), is a Unix command line-oriented framework for document structuring, publishing and search. Usage Using markup applied to a document, or a collection of do ...

'', meaning a sense of steadfast, rugged perseverance. The name has not been officially sanctioned by the

United States Geological Survey The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, ...

, as it is not found on their

Geographic Names Information System The Geographic Names Information System (GNIS) is a database of name and locative information about more than two million physical and cultural features throughout the United States and its territories, Antarctica, and the associated states of ...

,United States Geological Survey Geographic Names Information System
for Antarctican placenames nor does it meet the organization's standards for geological nomenclature on the Antarctic continent. Mount Sisu, reaching a height of 4300 meters over sea level, is located in the

Sentinel Range The Sentinel Range is a major mountain range situated northward of Minnesota Glacier and forming the northern half of the Ellsworth Mountains in Antarctica. The range trends NNW-SSE for about and is 24 to 48 km (15 to 30 mi) wide. Man ...

of the

Ellsworth Mountains The Ellsworth Mountains are the highest mountain ranges in Antarctica, forming a long and wide chain of mountains in a north to south configuration on the western margin of the Ronne Ice Shelf in Marie Byrd Land. They are bisected by Minnesota ...

, also the site of the highest peak in the Antarctic, the

Vinson Massif Vinson Massif () is a large mountain massif in Antarctica that is long and wide and lies within the Sentinel Range of the Ellsworth Mountains. It overlooks the Ronne Ice Shelf near the base of the Antarctic Peninsula. The massif is located ab ...

. The nearest other peaks to Mount Sisu are Mount Anderson and

Mount Bentley Mount Bentley () is a mountain (4,245 m) standing north of Mount Anderson in the main western ridge of the Sentinel Range, Antarctica. It was discovered by the Marie Byrd Land Traverse party, 1957–58, and named for Dr. Charles R. Bentle ...

Maps

Vinson Massif.
Scale 1:250 000 topographic map. Reston, Virginia: US Geological Survey, 1988.
Antarctic Digital Database (ADD).
Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly updated.

References

Ellsworth Mountains Mountains of Ellsworth Land {{EllsworthLand-geo-stub