Guide
Osawa Mine, located in Kazuno City, Akita Prefecture, is a site of copper mining with a history spanning 1,300 years. Recognized as a significant piece of Japan's modern industrial heritage, the area preserves the remnants of its massive scale, including giant chimneys and ore processing facilities. The sheer scale of the terrain and the structures provides a powerful sense of the industrial might that once defined this region.
In addition to copper, this area produced gold, silver, lead, and zinc. During the period of development by the Mitsubishi conglomerate following the management transition in 1889 (Meiji 22), vast amounts of resources were extracted. Although the mine closed in 1978 (Showa 53), the remaining buildings and equipment serve as vital historical records of the industry that supported Japan's modernization. Today, the site is primarily used for educational purposes, such as social studies field trips.
The most striking feature of Osawa Mine is its vast industrial ruins. The tall, slender concrete chimneys and the massive ore processing facilities built along the mountain slopes visually demonstrate the immense scale of the former mining operations. Furthermore, the Kazuno City Mining History Museum displays precious ore samples, historical documents from the Edo period, and models of mine shafts, allowing visitors to understand the technology and working conditions of the era.
Operating hours vary depending on the season. During the summer season (April 1 to October 31), the facility is open from 9:00 AM to 5:00 PM. During the winter season (November 1 to March 31), it is open from 9:00 AM to 3:30 PM. Please note that the facility is closed every Wednesday during the winter season (though it remains open on New Year's holidays and public holidays). For the best experience of the scenery, clear-sky days or seasons with crisp air are highly recommended to appreciate the texture of the industrial ruins.
The facility operates strictly on a reservation-only basis for organized groups, such as school trips, field studies, training sessions, and organized educational tours. Through mine shaft tours and facility inspections, visitors can learn about the role of mining in Japan's modernization and the advanced extraction technologies of the time. Please note that the site is not intended for general individual tourism, but rather for groups with specific educational objectives.
The area around Kazuno City is rich in historical industrial heritage and natural environments. To deepen your understanding of Osawa Mine, we recommend exploring local historical archives and other facilities that contributed to the regional industrial development.
As the site consists of former mining areas and industrial ruins, visitors are advised to wear sturdy, practical clothing suitable for uneven terrain. Because this is a reservation-only educational facility, you must complete your booking in advance via the prescribed methods (such as FAX or email). When visiting, please follow all instructions from the staff and prioritize safety at all times.