The Big Coal Subdivision is a railroad line owned by CSX Transportation in the U.S. State of West Virginia.
It was formerly part of the CSX Huntington East Division.
[1] It became part of the CSX Florence Division on June 20, 2016.
At its north end it continues south from the Big Marsh Fork Subdivision & Jarrolds Valley Subdivision and at its south end it continues south as the Coal River Subdivision.
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