About the Complex

Mariana Trench NWR is managed as part of the Mariana Islands Refuges and Monument Complex. A National Wildlife Refuge Complex is an administrative grouping of two or more refuges, wildlife management areas or other refuge conservation areas that are primarily managed from a central office location. Refuges are grouped into a complex structure because they occur in a similar ecological region, such as a watershed or specific habitat type, and have a related purpose and management needs. Typically, a project leader or complex manager oversees the general management of all refuges within the complex and refuge managers are responsible for operations at specific refuges. Supporting staff, composed of administrative, law enforcement, refuge manager, biological, fire, visitor services, and maintenance professionals, are centrally located and support all refuges within the complex.

Other refuges in the complex include:  Guam and Mariana Arc of Fire. The Complex headquarters is located at Ritidian Point, Guam National Wildlife Refuge, Dededo, Guam.