Jonathan Crowe over at the Map Room covers the second volume in an atlas of the 1946 US railway network, which sounds fascinating – if depressing in the light of Amtrak’s current woes.
For a similar view of Britain’s railways, past and present, you could try:
- British Rail Pre-grouping Atlas and Gazetteer
(for the situation pre-grouping, in 1926); or
- Rail Atlas Great Britain and Ireland
for the position today.