Identifies hydrothermally altered volcanic edifices and vulnerable areas downstream by mapping alteration on volcanoes, highlighting lahar prone watersheds using Global Digital Elevation Model data, and modeling via a lahar flow-fill modeling program

Distribution of the mineral pyrrhotite, an unstable sulfide mineral, across the conterminous United States, to help inform risk assessments. Data are provided in Esri file geodatabase, shapefile, and CSV formats.

A key aspect of identifying and mitigating environmental risks of mining is understanding how they vary from one deposit type to another—a concept that forms the basis for geoenvironmental mineral-deposit models.

Explains how USGS evaluates disruption potential, economic vulnerability, trade exposure, and overall supply risk to develop recommendations as to which mineral commodities might be included in the official list of US critical minerals.