Akita Prefecture Aomori Prefecture Kosaka has a cold Humid continental climate characterized by cool short summers and long cold winters with heavy snowfall and (Köppen climate classification Dfa).

The area of present-day Kosaka was part of ancient Mutsu Province and was ruled by the Nambu clan of Morioka Domain during the Edo period.

After the start of the Meiji period, the area became briefly part of Rikuchū Province before being transferred to Akita Prefecture in 1871.

In recent years, he has been searching for ways to create a town that makes use of the modern architecture of the Meiji period and the tourism resources of Lake Towada.

In addition to this, Dowa Holdings, the owner of the Kosaka Mine, is active in the metal recycling industry.