USGS Topographers at Work
Detailed Description
A level crew running a line from Mojave, California to Keeler, California via the state road, preparing the way for topographers to follow. R.A. Farmer, just to the left of the long-barreled Engineers WYE level instrument, was the levelman and Chief of Party. Holding the umbrella (used to shield the bubble in the level instrument from temperature variations) and the notebook is either M.D. Shannon or P.E. Turner.
Sources/Usage
Public Domain.