pl23_theb1844.jpg
Description
E. J. Parkin observing levels at White House, South Portico.Level party of Howard Rappleye
Credit
C&GS; Season's Report Rappleye 1950-101
Display Date
1950
Location
Washington, D. C.
Collection
Historic Coast & Geodetic Survey
Geodesy
Determining the Elevations - Leveling a Continent
Keywords
Geodesy
Leveling