I built one small coal mine kit....could use another small one, too....think there are at least two large coal mine/tipple kits out there, but l don't want real estate gobblers. Tourist train in southern Ky. runs past a small mine that was a tunnel in the bluff, mine car rails into it, and a small loading tipple. Simple as an HO kit. Tourist train stopped there. No siding now nor remnants l could discern, but must have had one.