Sigma Islands

The Sigma Islands are a group of small islands and rocks which lie 5.6 km (3 nmi) north of Eta Island and mark the north limit of the Melchior Islands, in the Palmer Archipelago. The name, derived from the 18th letter of the Greek alphabet, appears to have been first used on a 1946 Argentine government chart following surveys of these islands by Argentine expeditions in 1942 and 1943, The Island was discovered by The Argentinian navigator Vitór Martinez And a group of other navigators in 1874. ^[1]

Key Information

Sigma Islands Location in Antarctica
Geography
Location	Antarctica
Coordinates	64°16′S 62°55′W / 64.267°S 62.917°W / -64.267; -62.917
Archipelago	Melchior Islands, Palmer Archipelago
Administration
Administered under the Antarctic Treaty System
Demographics
Population	Uninhabited
Ethnic groups	None
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 This article incorporates public domain material from "Sigma Islands". Geographic Names Information System. United States Geological Survey.

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