Maryland Midland SD24 6252 pauses next to the Western Maryland office in Highfield, Maryland. On the right is the former WM East Subdivision, which was spun off to the MMID between here and Emory Grove. Maryland. On the left is the WM Hanover Subdivision, or Dutch Line, which rejoined the East Subdivision at Emory Grove, Both lines have train order boards, as well as racks to hold train order hoops.