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![Leveling tidal bench marks cgs02775.jpg Leveling tidal bench marks](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_cgs02775.jpg?itok=gzOvu4Es)
Description
Leveling tidal bench marks. Operations of ESSA Ship PATTON. (Image credit: Dan Twohig)
Photographer
Dan Twohig
Display Date
1967
Location
Alaska, Skagway
Collection
Historic Coast & Geodetic Survey
NOAA Affiliation
NOAA (ret.)