Digital Library Search
Description
Observing from level mounted on velocipede.Level center-mounted on velocipede.Crossing trestle on Southern Pacific Railroad.Level party of C. A. Egner (Image credit: C&GS; Season's Report Egner 1920)
Credit
C&GS; Season's Report Egner 1920
Display Date
1920
Location
California
Collection
Historic Coast & Geodetic Survey
Geodesy
Determining the Elevations - Leveling a Continent
Keywords
Geodesy
Leveling