Tsurukoku is divided into seven kuni, or “countries,” which were initially administrative units in the time of the Mikado, but now serve simply as geographical regions. The regions, from west to east, are:
The lands “West of the Checkpoints” were originally defined as all those west of the ancient capital of Aono-kyō. This region meets the Great Sea on the west, and is home to the port city of Kanba.
The “Road through the Central Mountains” is home to the ancient capital of Aono-kyō. The Iwayama mountain range cuts through the northern half of this region.
Named for the Iwayama mountain range, which dominates its northern half, this region is also home to some of the most fertile farmland in Tsurukoku. The southern third of the region is entirely flat plains.
This region is named for the largest forest in Tsurukoku, which falls almost entirely within its borders. The forest is comprised primarily of mulberry trees, which are used for two purposes. First, the silkworms that eat the mulberry leaves are harvested to make silk. Second, the bark of the trees is harvested to make paper.
The “Birthplace of Iron” is extremely mountainous, since it contains the tail end of the Tsuchitora range and the eastern end of the Iwayama range. As is implied by its name, the iron and jade mines in this region are the most prolific in the empire.
The “River’s Tail” covers most of the southern portion of Tsuchitora. Here, the Nagara River begins its journey west. The region is famous for its hot springs, glacial water, and sake production.
The “East Mountain Road” is the easternmost region of the empire, and is home to the northernmost section of the Tsuchitora mountain range and the entirety of the Hizuru range.