The area of Trinity River National Wildlife Refuge is 101.171 square kilometers.
Mark Twain National Wildlife Refuge Complex was created in 1958.
Swan River National Wildlife Refuge was created in 1973.
White River National Wildlife Refuge was created in 1935.
Parker River National Wildlife Refuge was created in 1942.
Alligator River National Wildlife Refuge was created in 1984.
Crystal River National Wildlife Refuge was created in 1983.
Tualatin River National Wildlife Refuge was created in 1992.
Wallkill River National Wildlife Refuge was created in 1990.
Maple River National Wildlife Refuge was created in 1939.
Great River National Wildlife Refuge was created in 1958.
Cahaba River National Wildlife Refuge was created in 2002.
Salinas River National Wildlife Refuge was created in 1974.