A long, narrow island off Izumo's northern coast. For the most past it is sparsely populated, mainly limited to scattered fishing villages along the coasts. However, at its southern tip lies Kaihi-ki, a seaside fortress, which is home to a modest fleet.

A small, peaceful village located partway up Mount Tsurugi. It is famous for it's hot springs, known for their therapeutic properties, and a popular destination for travelers.

A large mountain range which stretches across all four of Yamatai's regions, cutting them off from the rest of the continent. Partially blanketed with forests, they are a valuable source of timber. There are also modest amounts of gold, silver, and copper to be found, but iron is scarce. Due to Izumo's limited flat land, some of the mountainsides and hills within its borders have been cultivated.

The largest city in Izumo, located in the southern plains, in the shadow of Mount Hiba. Iwane is an important trading center in the region, as well as the base of power for the Tachibana clan. Just outside the city lies their main stronghold, Hiba-ki, at the base of the mountain.

A military port, constructed to guard Izumo's southern coasts. It is home to the bulk of the Tachibana navy.

Located in southeast Izumo, near the border with Kiiro, it forms a natural barrier. It is a vast and very dense forest, so much so that the trees block out sunlight and wind. The shadowy inner regions are mostly devoid of animals, and known to be eerily quiet. There are a few narrow, winding trails leading through the forest, but most people keep their distance. According to Yamatai mythology is it a cursed place, said to be haunted by evil spirits.