01 / Kuki-Ōbayashi Silver Mine Ruins
More than 1,500 mining and smelting tracesremain around Iwaya, Ōbayashi, and Kuki.
The mine is thought to have been developed on a large scale by Mōri Motonari in the mid-16th century. It thrived as shogunate-controlled land in the Edo period, and was redeveloped in the Meiji era by the Hori family of Tsuwano. In October 2021 it became Onan's first National Historic Site.
- Over 1,500 mining and smelting remains
- National Historic Site since Oct. 2021 (Onan's first)
- The 10th mining-related National Historic Site in Japan
