pl23_theb1571.jpg
![Recorder attempting to find error in readings theb1571.jpg Recorder attempting to find error in readings](https://s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1571.jpg)
Description
Recorder attempting to find error in readings.International Boundary Survey
Credit
In The Boundary Hunters
Location
Alaska - Canada Boundary
Collection
Historic Coast & Geodetic Survey
Geodesy
Triangulation
Observing the Angles
Keywords
Geodesy
Triangulation
Angles