Resources pertaining to railroads can be found across the Library. Many of the other special format collections are likely to have materials relating to railroads. A list of the other special format and subject area collections can be found here, and you can always contact a specialist from any of the individual collections through the Library's Ask a Librarian service.
Below you'll find a small selection of additional reference materials on railroads that are located outside of the Geography and Map Division. You can search for more material in the Library's online catalog.
The Library also produces Story Maps - online web applications which use the Library's diverse collections to bring epics from history to life using immersive mapping. Below are two Story Maps which feature railroads as a central theme.