A northbound empty NORX coal train headed for loading at the Caballo Rojo Mine snakes it way around a curve while climbing a short grade south of Bill, WY. The train is led by an older generation SD70ACe, a locomotive that UP is currently testing, along with their AC45CCTE's, in coal service for future use. They are looking for a locomotive to replace the usual AC4400CW's because the 15-20 year old units don't have a whole lot of life left.
