HOW MUCH COAL IS PRODUCED IN ILLINOIS ANNUALLY AND HOW VALUABLE IS IT?
In the last 10 years, an average of about 46 million tons of coal has been mined each year ([fig. 12]). In 1963, approximately 51.6 million tons were produced, which were valued at about $196,000,000 at the mine. Since 1961, strip mines have produced over half of the coal mined in Illinois.