This is one of the
best single player maps I have played for Railroads so far (including all the built in scenarios).
What I liked about it:

it keeps you focused, no sprawling network of railroads connecting everything to everything else and rush to keep building new routes all the time ending with vast number of trains (quality over quantity any time)

difficulty, you can really learn what works and what not, you only have enough money close to the end

nice scenery, not flat land with no trees like some other custom maps I have seen, nice little touches like the bear catching fish

I like that places are not close to each other and you can actually think about where to lay the tracks, where to put double track to accomodate more trains, whether to go around the mountains or build the tunnel, how to lay the track through difficult terrain

no AI to bother with, just tight but doable goals, it may not be for everybody but I really like it, if Railroads had some 20 maps like yourScrooge, it would be great single player game
Played 1.0 and liked it. Played new 1.2 and liked it even more, took me 3 tries to get it right and finish in time. I owe you many hours of great fun.
Please keep it coming... 