REEF uses a hierarchical 8-digit code system for survey site locations. Each geographic area has its own set of codes. When completing a survey, you need to know the complete 8-digit code for the site you surveyed.

If the site that you surveyed is not currently on our list, then please email zonecode@REEF.org to request a new code to be assigned. Please provide the site name, general location, and ideally the latitude and longitude.

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Region: TWA
Zone: South Side

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ZoneZone Code listGeographic ReportNameHave Coordinates?
53010001Geographic ReportThe EdgeYes
53010002Geographic ReportThe TexasNo
53010003Geographic ReportGod's WellNo
53010004Geographic ReportSuicide RunNo
53010005Geographic ReportSaletsatNo
53010006Geographic ReportDrop-DropNo
53010008Geographic ReportUnknown Wreck (9.5 nautical miles s. of Kingston)Yes
53010009Geographic ReportSoutheast Cay Reef (Kingston Cays)No
53010010Geographic ReportWreck The Edina (Kingston Cays)No
53010011Geographic ReportBig Pelican WestYes
53010012Geographic ReportDrunken Man's CayYes
53010013Geographic ReportLime CayYes
53010014Geographic ReportLime Cay EastYes
53010015Geographic ReportWreck ReefYes
53010016Geographic ReportBig Pelican EastYes
53010017Geographic ReportPigeon Island EastYes
53010018Geographic ReportPigeon Island WestYes
53010019Geographic ReportAlligator Reef NorthYes
53010020Geographic ReportBig Portland CayYes
53010021Geographic ReportGun CayYes
53010022Geographic ReportHans ReefYes
53010023Geographic ReportHotch Kyn PatchesYes
53010024Geographic ReportLighthouse ReefYes
53010025Geographic ReportMaiden CayYes
53010026Geographic ReportMorris ShoalYes
53010027Geographic ReportPigicanYes
53010028Geographic ReportRackhams CayYes
53010029Geographic ReportShallow RockYes
53010030Geographic ReportSouth East ReefYes
53010031Geographic ReportSouth West ReefYes
53010032Geographic ReportTern CayYes
53010033Geographic ReportCulloden Reef near WhitehouseYes
53010034Geographic ReportDutch Reef Shallow near WhitehouseNo
53010035Geographic ReportShallow Maze near WhitehouseNo
53010036Geographic ReportCottage Reef Shallow near WhitehouseNo