Discover information about Idaho geology, oil & gas, mines, geothermal areas, geochemistry and more.
Mines & Minerals
Mining is an important part of Idaho's economy. Each year IGS publishes a review of mining and exploration throughout the state.
Idaho Geologic Map
Our most popular item! View as PDF, or access GIS data and web services.
Latest IGS Publications
Looking for something new? See our latest maps, datasets, reports and more!