Halfway Lake National Wildlife Refuge was created on 1939-05-10.
Emiquon National Wildlife Refuge was created in 2000.
The area of Halfway Lake National Wildlife Refuge is 647,497.027584 square meters.
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.
Currituck National Wildlife Refuge was created in 1984.
Choctaw National Wildlife Refuge was created in 1964.
Muleshoe National Wildlife Refuge was created in 1935.
Modoc National Wildlife Refuge was created in 1961.
Aransas National Wildlife Refuge was created in 1937.
Breton National Wildlife Refuge was created in 1904.
Featherstone National Wildlife Refuge was created in 1970.