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![Leveling over the Tennessee River Bridge theb1808.jpg Leveling over the Tennessee River Bridge](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1808.jpg?itok=6lp9m-Lo)
Description
Leveling over the Tennessee River Bridge.Level party of William Gibson (Image credit: C&GS; Season's Report Gibson 1935)
Credit
C&GS; Season's Report Gibson 1935
Display Date
1935
Location
Alabama, Decatur
Collection
Historic Coast & Geodetic Survey
Geodesy
Determining the Elevations - Leveling a Continent
Keywords
Geodesy
Leveling