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![Lake Survey hydrographic launch theb1469.jpg Lake Survey hydrographic launch](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1469.jpg?itok=u_RCwPMm)
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https://www.noaa.gov/media/digital-library-photo/pl23theb1469jpgDescription
Lake Survey hydrographic launch (Image credit: NOAA)
Credit
NOAA
Display Date
Ca. 1960
Location
Great Lakes
Collection
Historic Coast & Geodetic Survey
Keywords
Charting
Boats
Sounding