USGS Employee conducts a measurement using mechanical current meter
![USGS Employee conducts a measurement using mechanical current meter](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/Manual%20measurement%20streamgage.jpg?itok=NrSj_5Me)
Detailed Description
Photograph of USGS employee conducting a measurement in a stream using a mechanical current meter.
Sources/Usage
Public Domain.
Photograph of USGS employee conducting a measurement in a stream using a mechanical current meter.
Public Domain.