After years of heavy use on the Class 1 railroads of North America, many freight locomotives are sold and live out a second career on short line railroads. Short Line rail companies almost exclusively buy used locomotives as opposed to new ones as it is a much more affordable option. Used locomotives also typically have a lot of life left in them, particularly old EMD built units. Here, a trio of former Santa Fe (later @BNSFRailway) GP30 locomotives lead a southbound mixed freight over the South