Ross Atoll Ross Atoll Ross Atoll is a small atoll in the Admiralty Chart with an almost round lagoon. It is located at about five miles from the Northeast point of Ari Atoll. The northern and western sides form one continuous barrier reef, and the eastern side is another barrier reef. The four mile wide lagoon has soundings from 15 to 20 fathoms (27 to 37 m) and abounds in detached coral patches. This natural atoll was named Ross Atoll by Captain Robert Moresby during his survey of the Maldive Islands. It was named after Captain Daniel Ross of the Bombay Navy,
Northern Thiladhunmathi Atoll Northern Thiladhunmathi Atoll Haa Alif Atoll - officially referred as Thiladhunmathi Uthuruburi (Northern Thiladhunmathi Atoll) is the northernmost administrative division of the Maldives. As the administrative division known as Haa Alif it includes Ihavandhippolhu, the northernmost natural atoll of the Maldive archipelago, as well as a section of the larger Thiladhunmathi or Tiladummati Atoll. Thiladhunmathi was divided into its northern and southern divisions on May 21, 1958. The north division was integrated with Ihavandhippolhu forming administratively a new atoll called Haa Alif atoll or Thiladhumathi North. In total Haa Alif atoll contains 42 islands, 14 of which are inhabited.At present