The Harlan Coalfield was opened up in the 1910s by the Louisville & Nashville (L&N) Railroad. Coal seams include the Harlan, Kelloika, High Splint, Low Splint, McKnight, and Wallins seams. Mining conditions were good, but, at times, managment-labor relations were terrible. Still, when I was in Harlan County I never met one rude person. Every person was friendly. But Harlan County is the rooster-est place I have ever been. Where ever I stopped, I could hear roosters crowing.