The Big Sandy Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. state of Kentucky.
[2] [3] At its north end, the Big Sandy Subdivision junctions with the Kanawha Subdivision, which heads east to West Virginia and Virginia and northwest to Ohio.
The line continues from the south end as the Kingsport Subdivision; this was the historic change between the C&O and Clinchfield Railroad.
From north to south, the following lines branch off, most to dead ends:
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