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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Choose one from the map below:
Region: HAW
Zone: Niihau Island and Lehua Island
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| Zone | Zone Code list | Geographic Report | Name | Have Coordinates? |
|---|---|---|---|---|
| 2101 | Zone Code list | Geographic Report | North Shore Niihau (Kaunuopou Pt. - north of Kawaihoa Pt.) | |
| 21010001 | Geographic Report | Niihau Arches/Superhighway | Yes | |
| 21010003 | Geographic Report | Vertical Awareness Pinnacle | Yes | |
| 21010004 | Geographic Report | Pu'u Mu'u | Yes | |
| 2102 | Zone Code list | Geographic Report | South Shore Niihau (Kawaihoa Pt. - south of Kaunuopou Pt.) | |
| 2103 | Zone Code list | Geographic Report | Lehua Rock Island | |
| 21030001 | Geographic Report | Pyramid Point / Lehua Ledge | Yes | |
| 21030002 | Geographic Report | Vertical Awareness/The Pinnacle | Yes | |
| 21030003 | Geographic Report | Staircase | No | |
| 21030004 | Geographic Report | Lehua Rock Keyhole | Yes | |
| 21030005 | Geographic Report | Lehua Rock NW tip | Yes | |
| 21030006 | Geographic Report | Lehua Rock South | Yes | |
| 21030007 | Geographic Report | Lehua Rock SW corner | Yes |