Geochemistry of soils from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are from the continental US and Alaska.
Show in a web browser window:
Show in Google Earth or other KML viewer:
ngdbsoil.kml (uncompressed 65 Mbytes)
ngdbsoil.kmz (compressed 2.4 Mbytes)
Show in your GIS using OGC web services:
https://mrdata.usgs.gov/services/ngdbsoil (WMS, version 1.3.0)
https://mrdata.usgs.gov/services/wfs/ngdbsoil (WFS, version 1.1.0)