
Guida
The Iwamura Castle Ruins are located on Mt. Shiroyama (713m) in Ena City, Gifu Prefecture. This site is historically significant, recognized as one of the "Three Great Mountain Castles of Japan" alongside Bitchu Matsuyama Castle and Takatoru Castle. The site showcases the characteristic features of a mountain fortress, including stone walls that utilize the steep natural terrain, ancient castle paths, and historical structures within the castle ruins park that allow visitors to feel the essence of the past.
This area once served as a vital stronghold for the Iwamura Clan. As a mountain castle built at a high altitude, its defensive structure was masterfully designed to exploit the natural topography. The surrounding castle town preserves the atmosphere of the Edo period, with traditional buildings and museums documenting the clan's history, creating a seamless historical landscape where the castle ruins and the town coexist.

Within the castle ruins park, you can find significant historical structures such as the Taiko Yagura (Drum Tower), the Shimoda Utako School, and the Chishinkan. The well-maintained stone walls and stone-paved paths offer a direct way to experience the unique defensive architecture of a mountain castle. Additionally, the nearby Iwamura Historical Museum provides detailed exhibits regarding the history of the Iwamura Clan and the castle itself.
The Iwamura Castle Ruins offer beautiful scenery through all four seasons. The lush greenery of the mountain castle is particularly striking during the fresh green season in spring and the vibrant autumn foliage season. While the scenery changes with the weather and seasons, the area remains a peaceful and serene environment for historical exploration throughout the year.

Ascending to the castle ruins is akin to a nature hike. Walking through the steep stone paths and undulating terrain allows you to physically experience the defensive functions of the original fortress. Furthermore, exploring the adjacent Iwamura Castle Town offers a chance to walk through traditional streets and connect with local culture and historical architecture.
The Iwamura Castle Town, spreading at the foot of the ruins, is an area rich in Edo-period charm. It features traditional architecture such as the Katsukawa and Kano houses, as well as museums housed in former Meiji-era merchant buildings. You can also visit Iwamura Brewing, a brewery with over 230 years of history. Visiting these local facilities provides a multi-dimensional understanding of Iwamura's heritage.
Since reaching the castle ruins requires climbing mountain paths, we highly recommend wearing comfortable clothing and sturdy walking shoes (such as sneakers or trekking shoes). Payment methods (cash, credit cards, or IC cards) vary by local shop and facility. As the castle ruins are a public historical site, please respect the environment and maintain quiet decorum.