Microsoft Train Simulator Custom Routes

[jgbishop]

I've just recently gotten into Microsoft Train Simulator (I'm a big train fan). The lines included with the game are great, but I'd like to know what else is out there.

I'm aware of the tracks available from Maple Leaf Tracks and 3D Train Stuff, but you have to pay for those. What free, add-on routes do people recommend?

Any other train fans here? I'm just fascinated with them!