Franklin Island National Wildlife Refuge was created in 1973.
The area of Franklin Island National Wildlife Refuge is 48,562.2770688 square meters.
Mackay Island National Wildlife Refuge was created in 1960.
Thacher Island National Wildlife Refuge was created in 1972.
Cat Island National Wildlife Refuge was created in 2000.
Protection Island National Wildlife Refuge was created in 1982.
Blackbeard Island National Wildlife Refuge was created in 1924.
Harbor Island National Wildlife Refuge was created in 1983.
Block Island National Wildlife Refuge was created in 1973.
Pea Island National Wildlife Refuge was created in 1937.
Gravel Island National Wildlife Refuge was created in 1913.
Cedar Island National Wildlife Refuge was created in 1964.
Buck Island National Wildlife Refuge was created in 1969.