pl23_theb1570.jpg
Image
Download ( 1.08 MB )Permalink
https://www.noaa.gov/media/digital-library-photo/pl23theb1570jpgDescription
Instrument station near Station 189.Care needed in moving.International Boundary Survey
Credit
NOAA Central Library
Display Date
1906
Location
Alaska - Canada 141st Meridian
Collection
Historic Coast & Geodetic Survey
Geodesy
Triangulation
Observing the Angles
Keywords
Geodesy
Triangulation
Angles