
Guida
Murakami Castle Ruins (also known as Maizuru Castle or Honjo Castle) is a flatland-mountain castle built at the summit of Mt. Gagyu (135m elevation) on the eastern edge of Murakami City, Niigata Prefecture. Although the original towers and gates no longer stand, many precious remains that tell the story of the Sengoku and Edo periods are preserved here. In 1993, it was designated as a National Historic Site. A walk to the summit takes approximately 20 minutes, allowing visitors to stroll through a lush, green environment filled with the sounds of birds while feeling the weight of history. The summit offers a spectacular panoramic view of Murakami City, making it a perfect place to enjoy both nature and history simultaneously.
It is believed that a castle existed on this site as early as the first half of the 16th century, serving as the stronghold for the Honjo clan during the Sengoku period. Notably, in 1568, the site was the scene of a fierce siege involving the legendary warlord Uesugi Kenshin. During the Edo period, the castle underwent significant renovations and the surrounding castle town was developed by successive lords such as the Murakami, Hori, and Matsudaira clans, establishing it as a vital center for the Hokuetsu region. The Naito clan later ruled the castle until the Meiji Restoration. Today, continuous restoration efforts, such as rebuilding damaged stone walls, are conducted to preserve its historical value.

The greatest draw of the Murakami Castle Ruins is the coexistence of different architectural structures from various eras. The steep 'Tatebori' (vertical trenches) and 'Koguchi' (gateways) used for defense during the Sengoku period remain clearly visible. In contrast, the heavy stone walls developed during the Edo period represent a different layer of history. Exploring these sites allows visitors to visualize the original scale and form of the fortress. Additionally, seeing the ongoing restoration work on the stone walls provides a firsthand look at the modern efforts to preserve and pass down this history.
The scenery changes beautifully with the seasons. In spring, fresh greenery sprouts; in summer, the mountain is enveloped in deep, lush foliage. Autumn brings vibrant colors to the mountain, and in winter, the ruins offer a serene atmosphere amidst the snow. The best time to visit is during the morning when it is relatively cool, or on clear days when the view from the summit is most vivid. Since the summit provides a wide view of the Murakami cityscape, visiting during daylight hours will allow for the clearest observation of the surrounding area.
The primary way to enjoy the site is through a 'Historical Walk.' As you climb the maintained paths, you can observe the defensive structures of the Sengoku period and the elegant stone walls of the Edo period. The summit also offers a wonderful viewing experience; breathing in the fresh air while gazing at the town below provides a peaceful escape from daily life. For history enthusiasts, it is an intellectual experience to compare the physical remains with historical documents and diagrams to understand the battle tactics and castle structures of the past.
At the foot of the castle ruins, you will find facilities to learn about the history and culture of Murakami, as well as areas that retain the atmosphere of an old castle town. After your hike, you can head down to the town to enjoy local delicacies and specialties. Regarding vehicle access, please note that some roads in the surrounding residential areas are narrow, so it is recommended to check your route in advance. For parking, you may use the free parking areas near the Murakami City Hall or the Murakami City Local History Museum.
The walk to the summit takes about 20 minutes of uphill climbing. Given the natural environment, comfortable clothing and sturdy walking shoes are highly recommended. While the site is free to enter, cash may be needed for nearby facilities or parking. As English-language signage is limited, having a translation app ready is helpful. As this is a National Historic Site, please respect the rules: do not touch or remove any parts of the stone walls or historical remains to ensure their preservation for future generations.