Mount Sisu is a mountain

Mountain

Image:Himalaya_annotated.jpg|thumb|right|The Himalayan mountain range with Mount Everestrect 58 14 160 49 Chomo Lonzorect 200 28 335 52 Makalurect 378 24 566 45 Mount Everestrect 188 581 920 656 Tibetan Plateaurect 250 406 340 427 Rong River...

 in the Antarctic

Antarctic

The Antarctic is the region around the Earth's South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises the continent of Antarctica and the ice shelves, waters and island territories in the Southern Ocean situated south of the Antarctic Convergence...

. Finnish mountaineer Veikka Gustafsson

Veikka Gustafsson

Eero Veikka Juhani Gustafsson, known as Veikka Gustafsson is a Finnish mountaineer. He was born in Espoo and he has three siblings, Elina, Erkki and Esa. His family bought a cabin in Tuupovaara and they moved there in 1976. In 1993 Veikka became the first Finnish person to have reached the top of...

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

Sisu

Sisu is a Finnish term loosely translated into English as strength of will, determination, perseverance, and acting rationally in the face of adversity. However, the word is widely considered to lack a proper translation into any language. Sisu has been described as being integral to understanding...

, meaning a sense of steadfast, rugged perseverance. The name has not been officially sanctioned by the United States Geological Survey

United States Geological Survey

The United States 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, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology,...

, as it is not found on their Geographic Names Information System

Geographic Names Information System

The Geographic Names Information System is a database that contains name and locative information about more than two million physical and cultural features located throughout the United States of America and its territories. It is a type of gazetteer...

, 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

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 wide...

 of the Ellsworth Mountains

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. They are bisected by Minnesota Glacier to form the northern Sentinel Range and the southern Heritage...

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

Vinson Massif

Vinson Massif is the highest mountain of Antarctica, lying in the Sentinel Range of the Ellsworth Mountains, which stand above the Ronne Ice Shelf near the base of the Antarctic Peninsula. The massif is located about from the South Pole and is about long and wide. At the highest point is Mount...

. The nearest other peaks to Mount Sisu are Mount Anderson

Mount Anderson (Antarctica)

Mount Anderson is a high mountain in the northern part of the Sentinel Range in Ellsworth Mountains, Antarctica. Probuda Ridge is trending northeast of the peak, and Ellen Glacier and Embree Glacier drain its eastern and northeastern slopes respectively...

 and Mount Bentley.