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 Happening

Draft Monument Management Plan and Environmental Assessment – Public Comment Period


NOAA Fisheries and the U.S. Fish and Wildlife Service (USFWS) are pleased to announce that the Marianas Trench Marine National Monument draft management plan is available for public review and comment.

Draft Monument Management Plan and Environmental Assessment

Pale, Beady-Eyed Crab Named for Harry Potter

To honor a collector whose species-finding skills bordered on the magical, biologists have named a newfound crab after characters from J.K. Rowling’s Harry Potter books. The crab, dubbed Harryplax severus, lives in deep rubble beds, or patches of dead coral fragments, along the coasts of Guam.

Learn more

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

News From the Refuge

Check out the latest updates and happenings from around the Mariana Arc of Fire National Wildlife Refuge!


Special Use Permits

Special Use Permits enable the public to engage in wildlife-related activities on a National Wildlife Refuge which would otherwise be prohibited.

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About the Complex

Mariana Islands

Mariana Arc of Fire National Wildlife Refuge is managed as part of the Mariana Islands .

Read more about the complex
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.

Learn more about the NWRS