RS-27s #316-317 load the Chessie System's City of Midland 41 on a sunny Sunday afternoon in Kewaunee.

The two Alco RS-27 locomotives are the newest power on the GBW, having been purchased second-hand from the Chicago & North Western a few years earlier.  

On the other hand, a few of the other things in the photo are historical items on their way out.  Boxcars like the Milwaukee Road horizontal rib boxcar behind the two engines were common in the Midwest, but by the 1970s the railroad wasn't building any more of them, ad the railroad itself was a few years away from bankruptcy; likewise the Pennsylvania boxcar, a common sight for decades, was on the way out as the PRR merged with the New York Central eight years earlier as part of the ill-fated Penn Central Railroad...

... and by the time this photo was taken the Chesapeake & Ohio had already petitioned the Interstate Commerce Commission to discontinue all Lake Michigan car ferry service, including the City of Midland 41 and service to Kewaunee. An ICC ruling known as the �Kewaunee Package� terminated car ferry service to other Wisconsin ports, but kept the GBW's connection in Kewaunee -- at least for a few more years.