
Guide
Sugatani Tatara Yamauchi is a collective name for the area in the mountains of Unnan City, Shimane Prefecture, where people once lived and worked in the traditional Japanese ironmaking method known as "Tatara ironmaking." This site is widely recognized as one of the real-life models for the "Tatara forge" seen in the famous animated film Princess Mononoke. The historical landscape, featuring the production of high-quality steel from iron sand, is preserved through its iconic Takadono structures and traditional buildings.
Tatara ironmaking is a traditional Japanese technique that uses iron sand and charcoal to extract iron. In the Sugatani area, high-temperature furnaces reaching 1,400 to 1,500 degrees Celsius were once used to produce high-quality Tamahagane (jewel steel), which served as the material for Japanese swords and firearms. This industry played a vital role in supporting Japan's metal culture. Today, the site serves as a precious cultural facility to pass down these historical lifestyles and technical skills to future generations.

The most striking feature is the Takadono, a large-scale structure housing the iron furnace. Standing 8.5 meters high with an area of 18.2 square meters, its structure allows visitors to imagine the intense heat generated by manual bellows used to drive the air into the furnace. Another notable site is the Odoba, where you can learn about the history of processing heavy iron masses using waterwheels.
Furthermore, the surrounding area retains traditional streetscapes, including buildings with roofs made from chestnut bark and residential areas like Sankenjaya and former small huts. These elements provide a visual window into the way of life during that era. The landscape is also shaped by the spiritual history of Kanayako-gami, the deity of the iron forge, and the peaceful scenery of the nearby streams.
The landscape changes beautifully with the seasons. For instance, from late March to early April, you may witness the seasonal color changes as the Katsura trees begin to bud, adding a touch of color to the ironmaking scenery. Because the site is located in a mountainous area, the harmony between the historical structures and the shifting natural environment is a major draw. As the last entry is at 16:00, we recommend arriving in the early afternoon to enjoy the daylight.

Beyond simple sightseeing, the area offers various programs to connect with local culture. You can experience 'Hairo' (tea roasting over charcoal) or join guided tours to deepen your understanding of the region. Additionally, nearby activities like 'Forest Adventure Tatara no Sato' allow you to enjoy the lush nature, and there are even opportunities to learn about local traditions like making homemade Makoli (rice wine).
The surrounding region offers many ways to experience the culture of Oku Izumo, including facilities dedicated to local traditions and Soba noodle shops using local ingredients. After walking through the historic streetscapes, you can enjoy the local food culture amidst the rich natural environment. Using a sightseeing taxi is a highly recommended way to explore the area comfortably.
The site is located in a mountainous, natural area, and some paths may be unpaved or uneven. We strongly recommend wearing comfortable walking shoes. Please respect the historical sites and follow all local rules to help preserve these precious cultural remains.