RSC2m picture of the day, if by “the day” you mean sometime in April 1973
579 powering a very short train at what I think is Medary, Wisconsin, just at the junction where the C&NW’s city line split off from the line running north through Onalaska and points north (the track in the background is separated far enough to fit the C&NW’s line, and the bluff in the medium distance matches my memory of the bluffs north of the La Crosse River at that point.)