About the Complex

Wetland pond surrounded by cattails and trees at Two Ponds National Wildlife Refuge

Two Ponds National Wildlife Refuge, located in Arvada, Colorado, is the smallest urban refuge in the country. At 72 acres, the Refuge's habitat hosts over 120 species of birds and a variety of mammals, reptiles, and amphibians.  

Rocky Mountain Arsenal National Wildlife Refuge is managed as part of the Rocky Mountain Arsenal National Wildlife Refuge 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:  Two Ponds National Wildlife Refuge and Rocky Flats National Wildlife Refuge. The Refuge Complex headquarters is located at 6550 Gateway Road, Commerce City, CO 80022.