Leveling to tide staff and water's edge at extreme low tide. Bubbler gauge orifice at right lower edge of photo. Improper installation necessitated leveling to assure observing lowest low water . Tidal bench mark leveling work off of DAVIDSON
Image ID: theb2404, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Location: Southeast Alaska Photo Date: 1979 Credit: Lieutenant Linda Mezger, NOAA Corps Category: Charting/Tides/Leveling/ • High Resolution Photo Available
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