What's Happening

Mariana Trench Marine National Monument

In January 2009, the Marianas Trench Marine National Monument was established by Presidential Proclamation. 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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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.

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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 .

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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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