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![Looking up the side of a 50-foot tower theb2534.jpg Looking up the side of a 50-foot tower](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb2534.jpg?itok=DaH7zoD4)
Description
Looking up the side of a 50-foot tower.Triangulation party of Wilbur Porter (Image credit: NOAA, George E. Marsh Album)
Credit
NOAA, George E. Marsh Album
Display Date
1934
Location
Midwestern United States
Collection
Historic Coast & Geodetic Survey
Geodesy
Triangulation
Bilby Steel Towers
Keywords
Geodesy
Triangulation
Towers
Bilby Steel