These four islands form a coral atoll that lies roughly halfway between North America and Asia. Its position has made it useful for a variety of purposes over the years, first as a telegraph cable and radio station, then as a flying boat stopover, and as an important naval and air station in wartime. Today it is administered by the US government as a wildlife refuge.
- Type Coral atoll islands
- Area 2.5 square miles (6.2 square km)
- Number of Islands 4