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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See a list of all locations within this region
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Region: HAW
Zone: Midway Atoll

ZoneZone Code listGeographic ReportNameHave Coordinates?
11010001Geographic ReportPhoenix CaldronYes
11010002Geographic ReportPeekabooYes
11010003Geographic ReportWild WestYes
11010004Geographic ReportKeoki's LedgeYes
11010005Geographic ReportAngel LedgeYes
11010006Geographic ReportFish HoleYes
11010007Geographic ReportSean's AnchorYes
11010008Geographic ReportCargo PierYes
11010009Geographic ReportReef btw Sean & KeokiYes
11010010Geographic ReportPatch Reef (Inside Lagoon)Yes
11010011Geographic ReportTwo BitsYes
11010012Geographic ReportReef HotelYes