How do you identify mountain hexes, score cards and Major Line values on the Western U.S. map?

Question

Accepted Answer

Go by color texture: brown rumpled hexes are mountains and mottled green are open terrain; conflicting dots are errors. A Baron that scores 3 points per listed city counts once per city, not per link. Major Line values are printed on the player aid cards. For scoring, the designer suggests the Western U.S. map can sit on top of the Railroad Tycoon board so its score track stays visible.

Railways of the World

How do you identify mountain hexes, score cards and Major Line values on the Western U.S. map?