pl23_theb1801.jpg
Description
Determining sea level - just kidding!Rodman at bench mark covered by floodwaters.Mississippi River flood of 1935
Credit
C&GS; Season's Report Oliver 1935
Display Date
1935
Location
Mississippi
Collection
Historic Coast & Geodetic Survey
Geodesy
Determining the Elevations - Leveling a Continent
Keywords
Geodesy
Leveling