Culebra National Wildlife Refuge was created in 1909.
The area of Culebra National Wildlife Refuge is 41.808 square kilometers.
Emiquon National Wildlife Refuge was created in 2000.
Matlacha Pass National Wildlife Refuge was created on 1908-09-26.
Mark Twain National Wildlife Refuge Complex was created in 1958.
Cibola National Wildlife Refuge was created in 1964.
Choctaw National Wildlife Refuge was created in 1964.
Muleshoe National Wildlife Refuge was created in 1935.
Currituck National Wildlife Refuge was created in 1984.
Trempealeau National Wildlife Refuge was created in 1936.
Modoc National Wildlife Refuge was created in 1961.
Aransas National Wildlife Refuge was created in 1937.
Breton National Wildlife Refuge was created in 1904.