Chychkan Wildlife Refuge was created in 1974.
The area of Chychkan Wildlife Refuge is 366 square kilometers.
Emiquon National Wildlife Refuge was created in 2000.
Chandalash Wildlife Refuge was created in 1975.
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.