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![Ferdinand Hassler directing movement of the Great Theodolite on Fire Island theb1851.jpg Ferdinand Hassler directing movement of the Great Theodolite on Fire Island](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1851.jpg?itok=nJ5ldl6p)
Description
Ferdinand Hassler directing movement of the Great Theodolite on Fire Island.Angle measurements at the end points of the Fire Island Base Line.Probably sketched by Assistant John Farley (Image credit: NOAA Photo Library, NOAA Central Library; NOAA Central Library)
Credit
NOAA Photo Library, NOAA Central Library; NOAA Central Library
Display Date
1836
Location
Fire Island, New York
Collection
Historic Coast & Geodetic Survey
Geodesy
Getting There
On Foot
Keywords
Getting There
On Foot