Most of the islands and features in this archipelago were discovered in February 1936 by Discovery Investigations (DI) personnel on the RSS William Scoresby.
These were first discovered on February 18, 1931, by the British Australian New Zealand Antarctic Research Expedition (BANZARE) under Douglas Mawson.
The islands were more fully mapped by Norwegian cartographers from aerial photographs taken by the LCE in January and February 1937.
The sound extends in an east–west direction, and is 1 nautical mile (2 km) wide at its narrowest point.
[11] Point Appleby marks the western coast of an unnamed island .8 nmi (1.5 km; 0.92 mi) south of Warren.
[12] The Warnock Islands are a separate group to the north of the William Scoresby Archipelago.