pl23_theb1779.jpg
Description
Entering a tunnel on motor velocipede.Sure hope nobody's coming the other way.Level party of Herman Odessey
Credit
C&GS; Season's Report Odessey 1923
Display Date
1923
Location
Alaska Central
Category
Historic Coast & Geodetic Survey
Geodesy
Determining the Elevations - Leveling a Continent
Keywords
Geodesy
Leveling