pl23_theb2532.jpg
Description
50-foot Bilby tower in Nebraska or Montana.Triangulation party of Wilbur Porter
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