Sibelius Glacier () is a

glacier A glacier (; or ) is a persistent body of dense ice, a form of rock, that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires ...

, 12 miles (19 km) long and 6 miles (10 km) wide, flowing south into the

Mozart Ice Piedmont Mozart Ice Piedmont () is an ice piedmont, 60 nautical miles (110 km) long-running in a NW-SE direction and 15 nautical miles (28 km) wide in its widest part, on the west coast of Alexander Island, Antarctica. Mapped from air photos taken ...

10 miles (16 km) southwest of Mount Stephenson in the northern portion of

Alexander Island Alexander Island, which is also known as Alexander I Island, Alexander I Land, Alexander Land, Alexander I Archipelago, and Zemlja Alexandra I, is the largest island of Antarctica. It lies in the Bellingshausen Sea west of Palmer Land, Antarcti ...

Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole. ...

. The glacier was first sighted from the air by the British Graham Land Expedition in 1937. Mapped from air photos taken by the

Ronne Antarctic Research Expedition The Ronne Antarctic Research Expedition (RARE) was an expedition from 1947–1948 which researched the area surrounding the head of the Weddell Sea in Antarctica. Background Finn Ronne led the RARE which was the final privately sponsored exp ...

in 1947–48, by Searle of the

Falkland Islands Dependencies Survey The Falkland Islands and Dependencies Aerial Survey Expedition (FIDASE) was an aerial survey of the Falkland Islands Dependencies The Falkland Islands Dependencies was the constitutional arrangement from 1843 until 1985 for administering the v ...

in 1960. This feature was named by the

United Kingdom Antarctic Place-Names Committee The UK Antarctic Place-Names Committee (or UK-APC) is a United Kingdom government committee, part of the Foreign and Commonwealth Office, responsible for recommending names of geographical locations within the British Antarctic Territory (BAT) and ...

for

Jean Sibelius Jean Sibelius (; ; born Johan Julius Christian Sibelius; 8 December 186520 September 1957) was a Finnish composer of the late Romantic music, Romantic and 20th-century classical music, early modern periods. He is widely regarded as his countr ...

(1865-1957), Finnish

composer A composer is a person who writes music. The term is especially used to indicate composers of Western classical music, or those who are composers by occupation. Many composers are, or were, also skilled performers of music. Etymology and def ...

See also