Johnston Atoll and biological weapons testing site, a secret missile base, and a chemical weapon and Agent Orange storage and disposal site. These activities left the area environmentally contaminated and remediation and monitoring continue. The Johnston Atoll is a deserted atoll in the North Pacific Ocean located about southwest of the island of Hawai'i and is grouped as one of the United States Minor Outlying Islands. The atoll, which is located on a coral reef platform, has four islands. Johnston (or Kalama) Island and Sand Island are both enlarged natural features, while "Akau" (North) and "Hikina" (East) are two artificial islands formed
Lhaviyani Atoll Lhaviyani Atoll Lhaviyani Atoll (also known as Faadhippolhu Atoll) is an administrative division of the Maldives. Its abbreviation is "Lh". Lhaviyani Atoll is located between 5° 15" and 5° 35" N and between 73° 20" and 74° 40" E. The capital of the atoll is Naifaru. There are a total of 54 islands in the atoll of which only 5 are inhabited: namely Naifaru, Hinnavaru, Kurendhoo and Olhuvelifushi. The island of Maafilaafushi was resettled in the 1980s in order to relieve the lack of land availability in Malé. The island once served as the capital of the separatist Kingdom of