Monitor National Marine Sanctuary

Italy

Monitor National Marine Sanctuary is the site of the wreck of the USS Monitor, one of the most famous shipwrecks in U.S. history. It was designated as the country's first National Marine Sanctuary on February 5, 1975, and is one of only two of the seventeen national marine sanctuaries created to pro

tect a cultural resource rather than a natural resource. The sanctuary comprises a column of water 1 nautical mile (1.2 mi; 1.9 km) in diameter extending from the ocean's surface to the seabed around the wreck of the American Civil War ironclad warship, which lies 16 nautical miles (18 mi; 30 km) south-southeast of Cape Hatteras, North Carolina. Average water depth in the sanctuary is 230 feet (70 m). Since it sank in 1862, Monitor has become an artificial reef attracting numerous fish species, including amberjack, black sea bass, oyster toadfish, and great barracuda. In March 2025, the National Oceanic and Atmospheric Administration, the parent organization of the Monitor National Marine Sanctuary, terminated the lease for the building, at the recommendation of the Department of Government Efficiency, to save $5,963.

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