The Virginia & Pittsburgh Coal & Coke Co. opened the Kingmont Mine in 1895 (some sources say 1891). Nearby they also owned the Morgan Mine. Coal mined here was sold under the trade name "Lincoln Coal," and it was suitable for thermal and gas purposes, and also to make coke. As a matter of fact, there were 67 beehive coke ovens at Kingmont.
Mark also took photos of the abandoned underground Kingmont coal mine. I think this falls into the "Don't try this at home" catagory. Mark must know how to avoid roof falls and black damp, or else is lucky. But you might not be so lucky.