Soil Data Portal - geochemistry and mineralogy
By Geology, Geophysics, and Geochemistry Science Center
May 2014 (approx.)
![example soil geochemistry data](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/soil-data-portal.png?itok=ea98aAdn)
Detailed Description
Screenshot of Geochemical and Mineralogical Maps for Soils of the Conterminous U.S. data portal, https://mrdata.usgs.gov/soilgeochemistry/.