Resources Maps and Availability for Mining of the Danville, Jamestown/Hymera, Springfield, Survant and Seelyville Coals, Vincennes Quadrangle, Knox County, Indiana and Lawrence County, Illinois Read more about Resources Maps and Availability for Mining of the Danville, Jamestown/Hymera, Springfield, Survant and Seelyville Coals, Vincennes Quadrangle, Knox County, Indiana and Lawrence County, Illinois
Coal Resources Map and Availability for Mining, Villa Grove Quadrangle, Douglas County, Illinois Read more about Coal Resources Map and Availability for Mining, Villa Grove Quadrangle, Douglas County, Illinois