Name: Seigoshi Mine
Location: Izu, Shizuoka Prefecture
Background: Located in one of Japan’s major mining regions, this gold mine in western Izu was in operation roughly from 1932-1987. It lies in the shadow of the better-known Toi Mine, which has become a popular tourist destination. Unlike many of its neighbors, Seigoshi is known for its many (and increasingly unstable) wooden buildings, as well as for the remnants of early-’80s computers and machinery left over from the mine’s final years.
Access: Take Route 136 from Toi Pass toward Toi Mine.
Source: “Haikyo Deflation Spiral” , a leading haikyo exploration site featuring dozens of frequently updated galleries.