Boston and Maine, BM GP9 1727 -1732 -CP RS18 8747, with EDSP, about to enter the yard at East Deerfield, Massachusetts. April 5, 1980. Jack D Kuiphoff © photo

On a perfect fall day, a pair of Boston & Maine GP9s ease train EDCO (East Deerfield, MA, to Concord, NH) through the double-to-single track transition at Willows East interlocking in Littleton, M... (more)