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Gray's Reef National Marine Sanctuary

Gray's Reef National Marine Sanctuary
IUCN category IV (habitat/species management area)
Map showing the location of Gray's Reef National Marine Sanctuary
Location USA
Nearest city Savannah, GA
Area 17 NM2 (58 km2)
Established January 1981
Governing body National Oceanic and Atmospheric Administration

Gray's Reef National Marine Sanctuary is one of the largest near shore live-bottom reefs in the southeastern U.S. National Marine Sanctuary System.

Within the 17-square-nautical-mile (58 km2) sanctuary, there are both rocky ledges and sandy flat places. The reef's dolomitic sandstone outcrops, submerged beneath 60 to 70 feet (18 to 21 m) of water, can be as tall as 2 to 3 m and are highly complex.[1] These nooks and crannies provide plenty of places for invertebrates to latch on to and for fish to hide in. Together these animals form a dense carpet of living creatures that in places completely hides the rock. That gives the habitat of Gray's Reef its common name — a "live bottom".

Researchers from NOAA and the paleontology as well as the effects of erosion.[1]


  1. ^ a b Noakes, SE; Garrison, EG; McFall, GB (2009). "Underwater Paleontology: Recovery of a Prehistoric Whale Mandible Offshore Georgia". In: Pollock NW, ed. Diving for Science 2009. Proceedings of the  

External links

  • Official NOAA website: Gray's Reef National Marine Sanctuary
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