They were mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition (LCE), 1936–37.

[5] The LCE applied the name "Ongul" ("fishhook"), which is suggestive of the outline of the two islands when taken together.

[8] Shōwa Flat is a small flattish area along the northwest shore of the lake.

It was named Shōwa-taira ("Emperor Hirohito's era flat"), presumably in association with Showa Station.

[12] Nesøya is 0.93 kilometres (0.5 nmi) long, and lies close off the north point of East Ongul Island.

JARE personnel later determined the feature was actually a cluster of islands, but retained the name Te for the group.

[26] This article incorporates public domain material from websites or documents of the United States Geological Survey.