Keywords: CSX Metro Sub Derwood 2010.jpg CSX Metropolitan Subdivision in Derwood Maryland CSX freight train heading east towards Washington D C Own Caseyjonz 2010-11-13 39 1279 -77 1707 region US-MD_type landmark_heading SE 2010 in Maryland Photographs taken on 2010-11-13 Color position light signals Derwood Maryland Freight trains in Maryland Metropolitan Subdivision Transport in Montgomery County Maryland November 2010 in the United States Rail crossovers Rail tracks in the United States Railway points in the United States Railway signals in the United States |