The mountains on this map are less impenetrable than the real thing, for playability.
In real life laying railway lines between cities in the Andes has proved very difficult.
Away from the mountainous west, some of the towns on the map are fairly small. Source maps
varied on which places were worthy of inclusion. Where in doubt, gameplay considerations
have been used to decide which ones get a number.
The size of the map suggests 4-5 players is best. The start locations for 4 players look
pretty even, not so sure with 5...