ArcGIS Field Maps Application of Hicks Dome and the Illinois Fluorspar District with results and maps from the Earth MRI projects:

https://www.arcgis.com/apps/mapviewer/index.html?webmap=5e85087b9fda4fd1894a316048270c6d

Related Reports

Earth MRI Hicks Dome background report (PDF)

Earth MRI Hicks Dome background map (PDF)

Mines in the Illinois portion of the Illinois-Kentucky Fluorspar District