Key facts about the Commonwealth of the Northern Mariana Islands

The coral reefs offshore of Saipan and Tinian are most abundant on the islands' western shores. Off Saipan, the combination of fringing and barrier reefs offers the most diverse coral habitats in the Commonwealth. Rota is surrounded by fringing reefs, and newer reefs are located off the northwest and southwest coasts (30). The extent of coral reef habitat surrounding Rota, Saipan, and Tinian is presented.