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
Providence Atoll Providence Atoll The Providence Atoll is part of the Farquhar Group of islands in the Seychelles that are part of the Outer Islands, with a distance of southwest of the capital, Victoria, on Mahé Island. The atoll was discovered in 1501 by Joao da Nova, a Portuguese explorer. The atoll was under British control until 1976 when they became part of Seychelles at the time of independence. Providence got its name after an event which happened in 1763. A French frigate, ”Heureuse” , was stranded on its reef, 705 km from Victoria near the northern end of the atoll. The