| Geography | |
|---|---|
| Location | Antarctica |
| Length | 17 mi (27 km) |
| Highest elevation | 465 m (1,526 ft) |
| Country | |
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Antarctica
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| Demographics | |
| Population | Data not available |
| Additional information | |
| Administered under the Antarctic Treaty System | |
Masson Island or Mission Island is an ice-covered island about 17 miles (27 km) long and rising to 465 metres (1,526 ft), lying 9 miles (14 km) northwest of Henderson Island within the Shackleton Ice Shelf. Masson Island is located in the western part of Mawson Sea at and has an elevation of 465 metres (1,526 ft) Masson Island was discovered in February 1912 by the Australian Antarctic Expedition under Sir Douglas Mawson, who named it for Professor Sir David Orme Masson of Melbourne, a member of the Australian Antarctic Expedition Advisory Committee.