Global Ocean Legacy

Marianas

In January 2009, President George W. Bush established by proclamation the Marianas Trench Marine National Monument, made up of three sections: the Volcanic and Trench units, plus the Islands Unit, which consists of 16,405 square miles of highly protected waters and submerged land in the western Pacific Ocean. The monument is located in the Mariana Archipelago, about 1,400 miles south of Japan.

The waters are home to rare beaked whales, dolphins, and colorful deep-water fish. More than two dozen species of seabirds inhabit the area, along with several species of endangered or threatened sea turtles, a variety of marine mammals, and giant coconut crabs, the largest land-living arthropod. At more than 36,000 feet, the Marianas Trench is the deepest place on Earth.

In 2008, Pew’s Global Ocean Legacy project joined efforts by residents of the Northern Mariana Islands, a U.S. commonwealth, to help safeguard the area, which then became the second major marine monument designated in the United States. Today, GOL continues to work with islanders to improve protections for this unique biological and geological hot spot.

Our Work

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  • The World's Largest Highly Protected Marine Reserves

    A map featuring the world's largest highly protected marine reserves. Read More

  • Global Ocean Legacy Map

    Global Ocean Legacy, a project of Pew and its partners, is working with local communities, governments and scientists around the world to protect and conserve some of our most important and unspoiled ocean environments. See where we are working in the map below. Read More

  • Protecting the Deep Sea

    Wellington, New Zealand, is an appropriate setting for this week's 13th International Deep Sea Biology Symposium. Just offshore from the capital city is the second-deepest underwater trench in the world, the Kermadec Trench. Situated east of the Kermadec island chain and extending more than 2,000 kilometers (1,242 miles) northwest toward Tonga, the area includes some of the most geologically... Read More

Where We Work

Global Ocean Legacy works with local communities, governments and scientists around the world to protect and conserve some of our most important and unspoiled ocean environments.

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Media Contact

Andrea Risotto

Manager, Communications

202.540.6510