Sampling Mine Drainage
By Geology, Geophysics, and Geochemistry Science Center
2016 (approx.)
![sampling mine drainage](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/sampling-mine-drainage.jpg?itok=ITrxI3S4)
Detailed Description
USGS scientist sampling at a historical mine waste pile with associated drainage.
Sources/Usage
Public Domain.