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
Gaafu Dhaalu Atoll Gaafu Dhaalu Atoll Gaafu Dhaalu (also known as Southern Huvadhu Atoll or Huvadhu Atholhu Dhekunuburi) is an administrative district of the Maldives formed by the southwestern section of Huvadhu Atoll. It was created on February 8, 1962 when Huvadhu Atoll was divided into two districts. Gaafu Dhaalu corresponds to the Southwestern section of this large natural atoll, south of the line extending between the channels of Footukandu and Vaarulu Kandu. The capital of this region is Thinadhoo (formerly known as Havaru Thinadhu). There are 153 islands in this district, 10 of which are inhabited. This district is located about 340