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Fact Sheet

Monument Fact Sheet

Located in the Mariana Archipelago east of the Philippines,the Marianas Trench Marine National Monument protects approximately 95,216 square miles of submerged lands and waters.

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Advisory Council

Advisory Council

The Mariana Trench Monument Advisory Council (MTMAC) provides advice and recommendations on the development of management plans and management of the monument.

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About the NWRS

National Wildlife Refuge System


The National Wildlife Refuge System, within the U.S. Fish and Wildlife Service, manages a national network of lands and waters set aside to conserve America’s fish, wildlife, and plants.

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What's New

  • 2016 Falkor Expedition: Hydrothermal Hunt Summary Video

    The Earth-Oceans Interaction Program shares a video summary of the most recent Falkor expedition to the Mariana back-arc spreading system from November through December of 2016.

    Hydrothermal Hunt Summary Video
  • MTMNM Transfer

    Transfer Signing 150x100December 21, 2016

    Today, the Government of the Commonwealth of the Northern Mariana Islands received a patent to submerged lands extending three geographical miles seaward from the mean high tide of the islands of Farallon de Pajaros (Uracas), Maug and Asuncion within the Marinas Trench Marine National Monument.

    Marianas Trench Marine National Monument Northern Islands Submerged Lands Transferred to the Commonwealth of the Northern Mariana Islands
  • Hope Spots

    “Health to the ocean means health for us,” oceanographer and explorer Sylvia Earle has said. The ocean covers almost three-quarters of Earth’s surface and contains about 97 percent of the planet’s water. The ocean is home to an almost otherworldly array of rainbow-colored fish, exotic plants, large-winged seabirds, powerful marine mammals, living corals and vital microorganisms. We are just beginning to understand how those ocean creatures are interconnected with one another and with us. The U.S. Fish and Wildlife Service is partnering with the National Oceanic and Atmospheric Administration, state and territorial governments and others to conserve the ocean and remote islands and atolls in it. The two federal agencies cooperatively manage four marine national monuments in the Pacific Ocean and one in the Atlantic. Earle has called the marine national monuments “hope spots” for ocean health.

    Hope Spots
  • News From the Monument

    Check out the latest updates and happenings from around the Mariana Trench Marine National Monument!

Page Photo Credits — NOAA
Last Updated: May 11, 2017
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