pl23_theb1768.jpg

Observing from level mounted on velocipede

Description

Observing from level mounted on velocipede.Level center-mounted on velocipede.Crossing trestle on Southern Pacific Railroad.Level party of C. A. Egner

Credit

C&GS; Season's Report Egner 1920

Display Date

1920

Location

California

Category

Historic Coast & Geodetic Survey
Geodesy
Determining the Elevations - Leveling a Continent

Keywords

Geodesy
Leveling