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Description
Rodman driving footpin for rod while submerged.Level party of J. D. Thurmond (Image credit: C&GS; Season's Report Thurmond 1935-217)
Credit
C&GS; Season's Report Thurmond 1935-217
Display Date
1935
Location
Northeast Minnesota
Collection
Historic Coast & Geodetic Survey
Geodesy
Determining the Elevations - Leveling a Continent
Keywords
Geodesy
Leveling