Subdivision information

Where does someone find information on Subdivisions? I know this site: http://www.wvrail.railfan.net/, has information on some CSX WV Subs but is there anywhere else to find similar information?

Are you looking for info on subdivisions on a specific railroad or information about subdivisions in general on any railroad?

Consider visiting one of your local swap sessions and look for employee timetables for the railroad in which you are interested. Some roads issued timetables on a systemwide basis in the past (MP, UP and C&NW come to mind) while others issued them on a divisional basis.

Thanks for responses. I was looking to figure out how Subs were done, mainly for NYC and Frisco possibly NH. I currently use virtual modeling and wanted routes for those roads. I have discovered from maps that a couple of NS routes available were part of the NYC system though I’m not sure the Subdivisions were done the same.