USGS Topographer at Work
![Image: USGS Topographer at Work](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/FF025-300.jpg?itok=XUwP40lJ)
Detailed Description
Topographer George Stanley Druhot running a level line on oil-shale cliffs north of the Colorado River. The level line was one mile long and climbed 2,000 feet over talus slopes.
Sources/Usage
Public Domain.