Kate: One of the realities of Ono’s world is that distances are real! Tolkien tried to make this point, but the limited first-person rather takes over (and the movies obliterated it, to a degree). Characters cannot just “see” over the mountain or get to places instantaneously or move to the next town.
How big is Tai in Hills of Silver Ruins? How far way is the capital?
Do you work with a map in your head when you translate?
Eugene: The Twelve Kingdoms books include maps in the front material. Fuyumi Ono provides enough navigational detail when moving people around that the most useful map in Hills of Silver Ruins places Bun Province in geographical context to the other provinces of Tai.
Our own pioneer ancestors provide relevant data in this regard. The Mormon Trail from Illinois to Utah is about 1300 miles and could be walked in three months. That's around 14 miles a day.