pl23_theb2534.jpg
![Looking up the side of a 50-foot tower theb2534.jpg Looking up the side of a 50-foot tower](https://s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb2534.jpg)
Image
Download ( 215 KB )Permalink
https://www.noaa.gov/media/digital-library-photo/pl23theb2534jpg-0Description
Looking up the side of a 50-foot tower.Triangulation party of Wilbur Porter
Credit
NOAA, George E. Marsh Album
Display Date
1934
Location
Midwestern United States
Category
Historic Coast & Geodetic Survey
Geodesy
Triangulation
Bilby Steel Towers
Keywords
Geodesy
Triangulation
Towers
Bilby Steel