Collage of USGS Minerals-related Products
By Mineral Resources Program
2009 (approx.)
![USGS product collage](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/collage_factsheets.gif?itok=N-fdh0yI)
Detailed Description
Collage of USGS Minerals Program product covers and images relating to environment.
Sources/Usage
Public Domain.