Marianas Trench Marine National Monument
Marine National Monument
In 2009, President George W. Bush established the Marianas Trench Marine National Monument to protect approximately 246,608 sq km of coral reef and deepwater habitats. The monument comprises three distinct units in the Mariana Archipelago: the Trench Unit, which is almost 1,100 miles (1,170.25 km) long and 44 miles (70.8 km) wide (includes only the submerged lands); the Volcanic Unit, which consists of small circles around 21 undersea mud volcanoes and thermal vents along the Mariana Arc (also only the submerged lands); the Islands Unit, which includes both the waters and submerged lands of the three northernmost Mariana Islands.
Contacts & Resources
US Fish and Wildlife Service - Marianas Trench Marine National Monument