BNSF 6875 heads up loaded ethanol train CSX B621 through the S curve at Nortonville, Kentucky BNSF 6875 heads up loaded ethanol train CSX B621 through the S curve at Nortonville, Kentucky, on July 30th, 2025, on the CSX Henderson Subdivision. Tech Info: 4K Video Frame Grab from a DJI Mavic 3 Classic Drone, RAW, 22mm, f/2.8.