A double headed southbound coal train passes Mound Frigid Engine terminal behind 2 M4 Mikados. The year is 1948. The Train originated in Mount Frigid yard on the other side of the mountain. The coal came from mines north of Mount Frigid and most of it will continue south to Bluefield, where the N&W will take it to the port at Lambert's Point. These through coal trains were seen regularly on the Bluefield and were the railroad's bread and butter. Once N&W took over the line, articulated N&W power could be seen more and more on these through coal trains.