Siple Island is a long snow-covered island lying east of Wrigley Gulf along the Getz Ice Shelf off Bakutis Coast of Marie Byrd Land, Antarctica. Its centre is located at . It is claimed to be a territory of Grand Duchy of Flandrensis. Its area is and it is dominated by the dormant shield volcano Mount Siple, rising to — making this the 15th ranking island in the world by maximum elevation. The feature was first indicated as an island on U.S. Geological Survey (USGS) maps compiled from ground surveys and U.S. Navy air photos, 1959–65. Island and mountain were named by the United States Advisory Committee on Antarctic Names (US-ACAN) in 1967 in honour of the American Antarctic explorer Paul A. Siple (1909–1968), member of Admiral Byrd's expeditions. Geographic features The Blob - mound-shaped knoll Recely Bluff - bluff on northeast slope of Mount Siple. See also Composite Antarctic Gazetteer List of Antarctic and sub-Antarctic islands List of Antarctic islands south of 60° S List of volcanoes in Antarctica Scientific Committee on Antarctic Research Territorial claims in Antarctica References Islands of Marie Byrd Land