Illinois State Geological Survey

Health, Science & Environment

A dormant Illinois volcano has rare earth metals. Scientists want to know why

Ulaa Kuziez

A dormant volcano in southern Illinois has scientists eager to learn more about the rare earth metals hidden beneath its surface.
Government, Politics & Issues

For Illinois homeowners worried about mine subsidence, here's a map that locates coal mines

Mary Delach Leonard

Homeowners in the metro-east who are concerned about mine subsidence can use an interactive mapping tool provided by the Illinois State Geological Survey…