Ashio Copper Mine, Industrial heritage site in Nikko, Japan.
The underground tunnels of the Ashio Copper Mine extend through multiple levels within the mountains of Tochigi Prefecture.
The mine started operations in the early 16th century under Tokugawa shogunate control and reached peak production in the late 17th century.
Local residents organized protests against the environmental damage, with politician Tanaka Shozo leading the movement for industrial reform.
Visitors can explore the preserved mining facilities, including the Tsudo shaft, which is designated as a National Historic Site.
The mine's operations led to the contamination of the Watarase River system, affecting agriculture and water supplies across multiple prefectures.
Location: Nikko
Location: Tochigi Prefecture
Opening Hours: Monday-Sunday 09:00-17:00
GPS coordinates: 36.63333,139.43972
Latest update: May 26, 2025 19:48
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