by tnrailwatcher
Today, moving through Smyrna, TN I saw a two engine train. The first was the standard gray CSX but the second was a dark blue, rather box-shaped engine quite plain in appearence. Under the "cab" windows were four capital letters in white. I can't remember surely what they were, but it was something like HLCL, HCHL? Does anyone know what this could have been travelling with CSX? Links to photos would be nice. Thank you.