Monitor National Marine Sanctuary was created in 1975.
Ricketts Point Marine Sanctuary was created in 2002.
any other marine sanctuary
Cordell Bank National Marine Sanctuary was created in 1989.
Fagatele Bay National Marine Sanctuary was created in 1986.
Florida Keys National Marine Sanctuary was created in 1990.
Gulf of the Farallones National Marine Sanctuary was created in 1981.
Monterey Bay National Marine Sanctuary was created in 1992.
Olympic Coast National Marine Sanctuary was created in 1994.
Channel Islands National Marine Sanctuary was created in 1980.
Stellwagen Bank National Marine Sanctuary was created in 1992.
The area of Channel Islands National Marine Sanctuary is 3,807.283 square kilometers.