A central fixture of Marshalltown, Iowa (a 42N city) is the huge marshalling yard with train maintenance shops located extremely close to the city's center. Who from the Marshall County seat has not gotten "trained" at one of the many RR crossings that divide the town north and south? The yard has been around for a long time and is still quite active in engine repair and maintenance. As a favorite spot for photographers there are two bridges that span the yard making for some potentially dramatic images of the trains below. One this day the Union Pacific Y705 locomotive's proximity to the Marshalltown water tower made the association between city and rail yard even more closer. Know that.