Shutdown Notice
Due to the lapse in federal appropriations, this website will not be updated until further notice. Where public access to refuge lands does not require the presence of a federal employee or contractor, activities on refuge lands will be allowed to continue on the same terms as before the appropriations lapse. Any entry onto Refuge System property during this period of federal government shutdown is at the visitor's sole risk. Please read this important updated message about the closure of National Wildlife Refuge System facilities during the shutdown, and refer to alerts posted on individual refuge websites for the status of visitor facilities and previously scheduled events that may still occur during the shutdown.

For more information, please visit the Department of Interior webpage at https://www.doi.gov/shutdown

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!

News
Permits

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

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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