- Encyclopedia of the Nations - Johnston Atoll
- Provides information about the country's geography, people, government, economy and tourism. From Thomson Gale.
- University of Texas Libraries - Johnston Atoll Nautical Chart
- NOAA navigational chart. Scale 1:50,000 1990 (289K)
- Wikipedia - Johnston Atoll
- Hyperlinked encyclopedia article covers the atoll's history and geography.