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: Biscayne National Park

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ZoneZone Code listGeographic ReportNameHave Coordinates?
33020001Geographic ReportBall Buoy ReefNo
33020002Geographic ReportThe Wall / Whistle WallYes
33020003Geographic ReportTriumph ReefYes
33020004Geographic ReportBache Shoals (north end of Elliot Key)Yes
33020005Geographic ReportPacific ReefYes
33020006Geographic ReportPatch ReefNo
33020007Geographic ReportMandalay WreckYes
33020008Geographic ReportLugano WreckYes
33020009Geographic ReportRocky ReefYes
33020010Geographic ReportVirginia Reef/Ball Buoy ReefYes
33020011Geographic ReportScott's Reef/Ball Buoy ReefNo
33020012Geographic ReportDoc DeMilly WreckYes
33020013Geographic ReportWreck of St. AnneYes
33020014Geographic ReportWreck of AlmiranteYes
33020015Geographic ReportWreck Blue FireYes
33020016Geographic ReportUniversity DockYes
33020017Geographic ReportWreck of RioYes
33020018Geographic ReportPatch Reef SW of Pacific LtYes
33020019Geographic ReportAdams Key DockYes
33020020Geographic ReportShark ReefYes
33020021Geographic ReportFowey RocksYes
33020022Geographic ReportBoca ChitaYes
33020023Geographic ReportSonar StructureYes
33020024Geographic ReportBear Cut (Virginia Key)Yes
33020025Geographic ReportMarker 3Yes
33020026Geographic ReportMangrove Bay Visitors' CenterYes
33020027Geographic ReportTodd's ReefNo
33020028Geographic ReportPicture ReefNo
33020029Geographic ReportBill Baggs State Park (Lighthouse jetty)Yes
33020030Geographic ReportSchooner's ReefYes
33020031Geographic ReportKatie's ReefYes
33020032Geographic ReportMatheson Hammock State Park MarinaYes
33020033Geographic ReportElkhorn ReefYes
33020034Geographic ReportStar ControlYes
33020035Geographic ReportStar ReefYes
33020036Geographic ReportBiscayne NP S+RS#911Yes
33020037Geographic ReportBiscayne NP S+RS #902Yes
33020038Geographic ReportBiscayne NP S+RS #903Yes
33020039Geographic ReportBiscayne NP S+RS #904Yes
33020040Geographic ReportBiscayne NP S+RS #914Yes
33020041Geographic ReportBiscayne NP S+RS #913Yes
33020042Geographic ReportBiscayne NP S+RS #918Yes
33020043Geographic ReportBiscayne NP S+RS #905Yes
33020044Geographic ReportBiscayne NP S+RS #901Yes
33020045Geographic ReportLong ReefYes
33020046Geographic ReportArratoon Apcar Wreck (Fowey Reef)Yes
33020047Geographic ReportLittle Erik’s Wreck (Biscayne Channel)Yes
33020048Geographic ReportMarker 9 (in Hawk Channel off Elliot Key)Yes
33020049Geographic ReportStairs WreckYes
33020050Geographic ReportRing WreckYes
33020051Geographic ReportYellow Brick Road Wreck #1Yes
33020052Geographic ReportBritish Frigate/Yellow Brick Road Wreck #2Yes
33020053Geographic ReportAlicia WreckYes
33020054Geographic ReportAnniversary ReefYes
33020055Geographic ReportAlinas ReefYes
33020056Geographic ReportThe DropYes
33020057Geographic ReportLob 120Yes
33020058Geographic ReportSawyer Cove (off Elliott Key)Yes
33020059Geographic ReportRainbow ReefNo
33020060Geographic ReportTJ LedgeNo
33020061Geographic ReportThunderbolt ReefYes
33020062Geographic ReportRock at Hawk Channel - Marker 32No
330201Zone Code listGeographic ReportBiscayne Monitoring
33020101Geographic ReportA-4bYes
33020102Geographic ReportA-3bYes
33020103Geographic ReportA-2bYes
33020104Geographic ReportA-1bYes
33020105Geographic ReportA1-C (Triumph Tower)Yes
33020106Geographic ReportA2-C (Boca Chita Pier)Yes
33020107Geographic ReportA3-C (Bug Light)Yes
33020108Geographic ReportA4-C (Stiltsville)Yes
33020109Geographic ReportA-1d (concrete barge)Yes
33020110Geographic ReportA-2d (elliott work dock)Yes
33020111Geographic ReportA-3d (princeton canal)Yes
33020112Geographic ReportA-4d (barge canal headpin)Yes
33020113Geographic ReportA-5d (university dock)Yes
33020114Geographic ReportA-6d (boca chita marina)Yes
33020115Geographic ReportA-7d (boca chita bulkhead)Yes
33020116Geographic ReportA-8d (soldier key dock)Yes
33020117Geographic ReportA-9d (adams k ey dock)Yes
33020118Geographic ReportA-10d (convoy pt breakwater)Yes
33020119Geographic ReportBisc 30aYes
330202Zone Code listGeographic ReportBiscayne Monitoring (60')
33020201Geographic Report60-aYes
33020202Geographic Report60-bYes
33020203Geographic Report60-cYes
33020204Geographic Report60-dYes
33020205Geographic Report60-1bYes
33020206Geographic Report60-2bYes
33020207Geographic Report60-3bYes
33020208Geographic Report60-4bYes
33020209Geographic Report60-3CYes
33020210Geographic Report60-5CYes
33020211Geographic Report60-4CYes
33020212Geographic Report60-8CYes
33020213Geographic Report60-9CYes
33020214Geographic Report60-7CYes
33020215Geographic Report60-11C (SE Park)Yes
33020216Geographic Report60-1CYes
33020217Geographic Report60-2CYes
33020218Geographic Report60-1dNo
33020219Geographic Report60-2dYes
33020220Geographic Report60-3dYes
33020221Geographic Report60-4dYes
33020222Geographic Report60-5dYes
33020223Geographic Report60-6dYes
33020224Geographic Report60-7dYes
33020225Geographic Report60-8dYes
33020226Geographic ReportSchooner EastYes
33020227Geographic ReportElkhorn EastYes
33020228Geographic ReportDome EastYes
33020229Geographic ReportDomeYes
33020230Geographic ReportDome controlYes
33020231Geographic ReportElkhorn ControlYes
33020232Geographic ReportBisc W12Yes
33020233Geographic ReportBisc W13Yes
330203Zone Code listGeographic ReportBiscayne Monitoring (40')
33020301Geographic Report40-aYes
33020302Geographic Report40-bYes
33020303Geographic Report40-cYes
33020304Geographic Report40-dYes
33020305Geographic Report40-1bYes
33020306Geographic Report40-2bNo
33020307Geographic Report40-1C (was 60-10C)Yes
33020308Geographic Report40-1dYes
33020309Geographic Report40-2dYes
33020310Geographic Report40-3dYes
33020311Geographic Report40-4dYes
33020312Geographic Report40-5dYes
33020313Geographic Report40-6dYes
33020314Geographic ReportElkhorn 40'Yes
330204Zone Code listGeographic ReportBiscayne Monitoring (20')
33020401Geographic Report20-aYes
33020402Geographic Report20-bYes
33020403Geographic Report20-cYes
33020404Geographic Report20-dYes
33020405Geographic Report20-1bYes
33020406Geographic Report20-2bYes
33020407Geographic Report20-3bYes
33020408Geographic Report20-5bYes
33020409Geographic Report20-6No
33020410Geographic Report20-1C (Igloo Moon)Yes
33020411Geographic Report20-1dYes
33020412Geographic Report20-2dYes
33020413Geographic Report20-3dYes
33020414Geographic Report20-4dYes
33020415Geographic Report20-5dYes
330205Zone Code listGeographic ReportBiscayne Monitoring (Patch)
33020501Geographic ReportP-1Yes
33020502Geographic ReportP-2Yes
33020503Geographic ReportP-3Yes
33020504Geographic ReportP-4Yes
33020505Geographic ReportP-5Yes
33020506Geographic ReportP-6Yes
33020507Geographic ReportP-7Yes
33020508Geographic ReportP-8Yes
33020509Geographic ReportP new 1Yes
33020510Geographic ReportP new 2 (abort)Yes
33020511Geographic ReportP new 3Yes
33020512Geographic ReportP new 4Yes
33020513Geographic ReportP new 5Yes
33020514Geographic ReportP-1bYes
33020515Geographic ReportP-2bYes
33020516Geographic ReportP-3bYes
33020517Geographic ReportP-4bYes
33020518Geographic ReportP-5bYes
33020519Geographic ReportP-6bYes
33020520Geographic ReportP-7bYes
33020521Geographic ReportP-8bYes
33020522Geographic ReportP-9bYes
33020523Geographic ReportP-10bYes
33020524Geographic ReportP-11bYes
33020525Geographic ReportP12bYes
33020526Geographic ReportP-13bYes
33020527Geographic ReportP-14bYes
33020528Geographic ReportP-15bYes
33020529Geographic ReportP1-C (Legare-1)Yes
33020530Geographic ReportP2-C (Legare-2)Yes
33020531Geographic ReportP3-C (Marker #3 night)Yes
33020532Geographic ReportP4-C (Money Reef)Yes
33020533Geographic ReportP-1d (Amanda's night)Yes
33020534Geographic ReportSchooner WestYes
33020535Geographic ReportElkhorn West (Amanda's)Yes
33020536Geographic ReportDome WestYes
33020537Geographic ReportBisc P7aYes
33020538Geographic ReportBisc P9aYes
33020539Geographic ReportBisc P14aYes
33020540Geographic ReportBisc P12aYes
33020541Geographic ReportBisc P11aYes
33020542Geographic ReportBisc P15aYes
33020543Geographic ReportBisc P10aYes
33020544Geographic ReportBisc P13aYes
330206Zone Code listGeographic ReportBiscayne Monitoring (Seagrass)
33020601Geographic ReportSG-1Yes
33020602Geographic ReportSG-2Yes
33020603Geographic ReportSG-3Yes
33020604Geographic ReportSG-3bYes
33020605Geographic ReportSG-2bYes
33020606Geographic ReportSG-1bYes
33020607Geographic ReportSG1-C (Stiltsville)Yes
33020608Geographic ReportSG2_C (Soldier Key)Yes
33020609Geographic ReportSG3-C (Soldier Key)Yes
33020610Geographic ReportSG4-C (sg near marker 3)Yes
33020611Geographic ReportSG5-C (NW Park)Yes
33020612Geographic ReportSG6-C (Black Ledge)Yes
33020613Geographic ReportSG7-C (No Name Shoal)Yes
33020614Geographic ReportSG8-C (W Feather Bed)Yes
33020615Geographic ReportSG9-C (was HBS)Yes
33020616Geographic ReportSG 10-C (Midnight Pass)Yes
33020617Geographic ReportSG11-C (Arsenicker)Yes
33020618Geographic ReportSG-1dYes
33020619Geographic ReportSG-2dYes
33020620Geographic ReportSG-3dYes
330207Zone Code listGeographic ReportBiscayne Monitoring (Hard bottom)
33020701Geographic ReportHB-1Yes
33020702Geographic ReportHB-2Yes
33020703Geographic ReportHB-3Yes
33020704Geographic ReportHB new 1Yes
33020705Geographic ReportHB new 2Yes
33020706Geographic ReportHB new 3Yes
33020707Geographic ReportHB-1bYes
33020708Geographic ReportHB-2bYes
33020709Geographic ReportHB-3bYes
33020710Geographic ReportHB-4bYes
33020711Geographic ReportHB1-C (Brewster)Yes
33020712Geographic ReportHB2-C (Mid-Bay HB)Yes
33020713Geographic ReportHB3-C (SW Bay)Yes
33020714Geographic ReportHB-1d (elliott hb)Yes
33020715Geographic ReportHB-2dYes
33020716Geographic ReportHB-3d (billy's pt)Yes
33020717Geographic ReportHB-4d (old rhodes hb)Yes
33020718Geographic ReportHB-5d (NLHB)Yes
330208Zone Code listGeographic ReportBiscayne Monitoring (Sand)
33020801Geographic ReportS-1Yes
33020802Geographic ReportS-2Yes
33020803Geographic ReportS-1bYes
33020804Geographic ReportS-2bYes
33020805Geographic ReportS1-C (Safety Valve)Yes
330209Zone Code listGeographic ReportBiscayne Monitoring (Channels)
33020901Geographic ReportCH-1 (Boca Chita)Yes
33020902Geographic ReportCH-2 (Sands Cut)Yes
33020903Geographic ReportCH-3 (Caesar Creek)Yes
33020904Geographic ReportCH-4 (Broad Creek)Yes
33020905Geographic ReportCH-1b (caesar marker 12)Yes
33020906Geographic ReportCH-2b (caesar marker 18)Yes
33020907Geographic ReportCh-3b (lewis)Yes
33020908Geographic ReportCh-4b (caesar S channel)Yes
33020909Geographic ReportCH-1C (Boca Chita)Yes
33020910Geographic ReportCH2-C (Key Hole)Yes
33020911Geographic ReportCH3-C (Stiltsville)Yes
33020912Geographic ReportCH4-C (Hurricane Creek)Yes
33020913Geographic ReportCH-1d (hurricane creek south)Yes
33020914Geographic ReportNOAA Site-Stn E231Yes
33020915Geographic ReportNOAA Site-Stn 5301Yes
33020916Geographic ReportNOAA Site-Stn 2331Yes
33020917Geographic ReportNOAA Site-Stn 5291Yes
33020918Geographic ReportNOAA Site-Stn 1892Yes