Coronavirus (COVID-19) Notice
Although most refuge lands and outdoor spaces have remained open for the public to enjoy, we ask that you recreate responsibly.

  • Check alerts and local conditions on this website and call ahead for current information. Operations vary based on local public health conditions.
  • Consistent with CDC recommendations, all visitors (age 2 and older), who are fully vaccinated are required to wear a mask inside of federal buildings in areas of substantial or high community transmission.. All visitors who are not fully vaccinated must continue to wear masks indoors and in crowded outdoor spaces.
  • Most importantly, stay home if you feel sick and continue to watch for symptoms of COVID-19 and follow CDC guidance on how to protect yourself and others.


What's New

Draft Management Plan and Environmental Assessment — Public Meetings Q&A

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NOAA Fisheries and the U.S. Fish and Wildlife Service (USFWS) held four virtual public meetings to discuss the Marianas Trench Marine National Monument Draft Management Plan. The Q&As can be found on the management plan page (link below).

Draft Monument Management Plan and Environmental Assessment

Mariana Trench Children's Activity Book

Discover the Mariana Trench with this downloadable activity book.

Activity Book

Northern Islands Submerged Lands Transfer

The Commonwealth of the Northern Mariana Islands, the U.S. Department of Commerce, and the U.S. Department of the Interior formally reached an agreement for the transfer of submerged lands around the islands of Farallon de Pajaros (Uracas), Maug, and Asuncion and associated mineral rights to the CNMI. Check out the fact sheet below for the most recent update on the transfer.

Fact Sheet about the Submerged Lands Transfer
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.

Learn more

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.

Learn more

About the NWRS

National Wildlife Refuge System

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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.

Learn more about the NWRS