Took me awhile to figure out the CSXT's spaghetti bowl of branchlines for their Kentucky Coal System. The CSXT has a branchline that runs from Martin, KY, off the Big Sandy Sub to Hazard, KY. Part of it is the E&BV Sub which runs 37 miles from Martin to Deane which most of this trackage is ex-C&O. Then the rest of it is the Rockhouse Sub which runs 43 miles from Deane to Hazard which most of this is trackage is ex-L&N. Back in the day these 2 railroads went to Deane, but didn't connect til later with the mergers. The Rockhouse Sub connects with the EK Sub at Hazard.
Here a loaded coal train is 8 miles from Martin as they work over the E&BV Sub thru Langley in southeastern Kentucky.