Tower Island is an Antarctic island long and high. It marks the north-east extent of Palmer Archipelago. It lies north-east of Trinity Island, separated by Gilbert Strait. Both islands are separated from the Davis Coast to the south by Orléans Strait, running northeast–southwest.

</references>

  • SCAR Composite Antarctic Gazetteer
  • Trinity Peninsula. Scale 1:250000 topographic map No. 5697. Institut für Angewandte Geodäsie and British Antarctic Survey, 1996.