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: PAC
Zones: Skagit Bay, Whidbey Island, Camano Island State Park, Port Susan and Possession Sound, Edmonds, Bainbridge Island, Vashon Island, West Seattle Area, Burien - Tacoma Area, King Co line (north) to S. Elliot Bay, Pt. Defiance - Nisqually River and Nisqually River - Cooper Point (W. Budd Inlet)

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