pl23_theb1573.jpg
![White Pass West Base along the 141st Meridian theb1573.jpg White Pass West Base along the 141st Meridian](https://s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1573.jpg)
Description
White Pass West Base along the 141st Meridian.International Boundary Survey
Credit
National Geographic Magazine July 1912
Location
Alaska - Canada Boundary
Collection
Historic Coast & Geodetic Survey
Geodesy
Triangulation
Observing the Angles
Keywords
Geodesy
Triangulation
Angles