Make a resi. 9 or 11am. You re taken by small tour bus to the overlook and into the the conveyor and shipping process. Awesome operation to see a 140 car train load under a silo that is constantly being fed by convneyors and gigund dump trucks. Knowledgeable tour guide- a woman and former coal truck driver-knows it all. Very welcoming staff and best of all it s FREE! Don t miss this . takes two fun hours.