pl23_theb1757.jpg
![Observer riding ahead theb1757.jpg Observer riding ahead](https://s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1757.jpg)
Description
Observer riding ahead.Level crew of W. H. Burger
Credit
NOAA, John Hayford Album
Display Date
1902
Location
Texas, Area near Pittsburg
Collection
Historic Coast & Geodetic Survey
Geodesy
Determining the Elevations - Leveling a Continent
Keywords
Geodesy
Leveling
Getting There
Velocipede