 But it was mined back. Much of central and southern Illinois has been impacted by mining, mostly coal mining, but there's been a fair share of limestone mining as well. As for the mine near Gordon Moore Park, Huber says it's his belief that very little of what's happening underground happens directly under the park, but rather heads south and east of there. Here are the full interview with Huber at this story at AdvantageNews.com.