pl23_theb2485.jpg
Description
White River West Base on the 141st Meridian Survey.International Boundary Commission surveyors
Credit
National Geographic Magazine July 1912
Display Date
1911
Location
Alaska-Canada Boundary 141st Meridian
Collection
Historic Coast & Geodetic Survey
Geodesy
Triangulation
Wooden Towers & Signal Poles
Keywords
Geodesy
Triangulation
Towers
Wooden