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: TEP
Zone: Clarion Island

ZoneZone Code listGeographic ReportNameHave Coordinates?
53040001Geographic ReportEast PointYes
53040002Geographic ReportMonumento / Roca PyramidYes
53040003Geographic ReportThree FathomsYes
53040004Geographic ReportNavy BaseYes