Arato Castle (Chikuma City, Nagano Prefecture) Complete Guide | History, Highlights, Access, and Scenic Spots for Cherry Blossoms and Autumn Leaves
Arato Castle, located in Chikuma City, Nagano Prefecture, is a popular spot for history buffs and tourists alike, as it is a historical park that faithfully recreates a mountain castle from the Sengoku period. Built on a mountain approximately 470 meters above sea level, the castle offers breathtaking views overlooking the Chikuma River and tells the story of the fierce battles between the Murakami and Takeda clans. This article provides detailed information you should know before visiting Arato Castle, including its history, highlights, access methods, and seasonal attractions.
What is Arato Castle? Basic Information and Overview
Arato Castle is the site of a medieval mountain castle located near Kamiyamada Onsen in Chikuma City, Nagano Prefecture. Currently, it is maintained as the “Arato Castle Historical Park,” with restored barracks, turrets, residences, and gates, making it a valuable facility where you can experience the appearance of a Sengoku period mountain castle.
Basic Data on Arato Castle
- Location: Kamiyamada Onsen, Chikuma City, Nagano Prefecture
- Construction Period: Mid-15th Century (Estimated)
- Castle Type: Mountain Castle
- Elevation: Approximately 470 meters
- Relative Height: Approximately 150 meters
- Main Lords: Retainers of the Yamada and Murakami Clan
- Designation: Chikuma City Historic Site
Arato Castle is a typical mountain castle that skillfully utilizes the natural terrain, characterized by its defensive structure that takes advantage of steep slopes and ridges. The reconstructed buildings are faithfully reproduced based on archaeological excavations and historical document research, making them extremely valuable resources for understanding the castle’s appearance at the time.
History of Arato Castle | The Stage of the Battles Between the Murakami and Takeda Clans
From Construction to the Sengoku Period
The exact construction date of Arato Castle is unclear, but it is believed to have been built in the mid-15th century by the local Yamada clan. The castle was strategically located overlooking the Chikuma River, making it an important base controlling a key transportation hub in northern Shinano.
During the Sengoku period, Arato Castle came under the control of the Murakami clan, a powerful daimyo of northern Shinano. The Murakami clan’s base was Katsuo Castle (present-day Sakaki Town), and Arato Castle functioned as a branch castle.
Battles with Takeda Shingen
The most important event in the history of Arato Castle is the battles against Takeda Shingen. Takeda Shingen of Kai Province sought to expand into northern Shinano, and in 1553 (Tenbun 22), he clashed fiercely with Murakami Yoshikiyo.
The Takeda army successively conquered the territories of the Murakami clan in northern Shinano, and Arato Castle also became a target. Although the castle had a strong defensive structure, it is said to have fallen to the overwhelming military power of the Takeda clan.
After the Fall of the Takeda Clan and the Castle’s Abandonment
After the Takeda clan gained control of Arato Castle, it functioned as one of the Takeda clan’s bases for controlling northern Shinano. However, with the fall of the Takeda clan in 1582 (Tensho 10), the strategic importance of Arato Castle declined, and it is believed to have been abandoned soon after.
From the Edo period onward, Arato Castle disappeared from the historical stage and became buried in the forest.
Modern Restoration and Historical Park Development
From the 1980s to the 1990s, Chikuma City (then Koshoku City) conducted archaeological excavations of the Arato Castle ruins. The results of the excavations revealed the castle’s structure and scale, and restoration work began in 1995 (Heisei 7).
During the restoration work, barracks, turrets, residences, and gates were faithfully recreated based on knowledge gained from archaeological excavations and research findings on castle architecture of the same period. Currently, it is open to the public as “Arato Castle Historical Park,” attracting many tourists throughout the year.
Highlights of Arato Castle | A Restored Sengoku Period Mountain Castle
Restored Buildings
The greatest attraction of Arato Castle Historical Park is the group of buildings that faithfully recreate the appearance of a Sengoku period mountain castle.
Barracks
These buildings served as living quarters for soldiers, characterized by their simple yet practical structure. Inside, there are exhibits recreating life at the time, offering a glimpse into the lives of soldiers during the Sengoku period.
Turrets
Turrets, which monitored enemy movements and served as bases for attacks, are strategically placed within the castle. From the turrets, you can enjoy a panoramic view of the Chikuma River and the surrounding mountains, giving you a real sense of how the lookouts monitored enemy movements at the time.
Manor House
This building served as the residence of the castle lord and high-ranking samurai, and is built with a higher status than barracks. Inside, there are exhibits showcasing the castle’s history and the results of archaeological excavations.
Castle Gate
The castle gate, guarding the entrance to the castle, incorporates various ingenious features to prevent enemy intrusion. Observing the gate’s structure allows you to understand the advanced castle-building techniques of the Sengoku period.
Earthworks and Moats
Besides the restored buildings, defensive structures such as earthworks and moats are also highlights. These were built utilizing the natural terrain, allowing you to learn about defensive tactics unique to mountain castles.
Earthworks are earthen walls surrounding the castle to prevent enemy intrusion. Moats are trenches artificially created by cutting through ridges, and were important defensive structures that hindered enemy advances.
Scenic Viewpoint
The excellent location of Arato Castle is a major attraction not only defensively but also in terms of its scenic beauty. From within the castle grounds, you can enjoy a panoramic view of the majestic Chikuma River, the surrounding mountains, and the cityscape of Chikuma.
The view from the turret is particularly magnificent; on clear days, you can even see the distant Northern Alps. This breathtaking scenery will surely become an unforgettable memory for visitors.
Historical Materials Exhibition
The museum houses an exhibition corner showcasing the history of Arato Castle and the results of archaeological excavations. Exhibits include unearthed artifacts, materials illustrating the castle’s restoration process, and explanatory panels on the history of northern Shinano during the Sengoku period, allowing for a deeper understanding of the castle’s history.
Arato Castle in Every Season | A Famous Spot for Cherry Blossoms and Autumn Leaves
Arato Castle Historical Park is popular not only for its historical value but also as a spot where you can enjoy the natural beauty of each season.
Spring Cherry Blossoms
In spring, the cherry trees planted within and around the castle grounds bloom all at once, coloring the castle ruins. The contrast between the restored buildings and the cherry blossoms is beautiful, attracting many photography enthusiasts. The best time to see the cherry blossoms is usually from mid- to late April, and the castle is especially crowded with tourists during this period.
The view of the Chikuma River and cherry blossoms from inside the castle is spectacular, making it a highly recommended visit in spring.
Summer’s Fresh Greenery
In summer, the entire mountain is enveloped in lush green, creating a cool and refreshing atmosphere. Due to its high altitude, the temperature is lower than in urban areas, making it an ideal summer retreat. Strolling through the fresh greenery and reflecting on the Sengoku period (Warring States period) is a wonderful experience.
Autumn’s Foliage
In autumn, the entire mountain is ablaze with autumn colors, and Arato Castle presents its most beautiful appearance of the year. The best time to see the autumn leaves is usually from late October to early November, and the combination of the red and yellow trees and the castle architecture is breathtaking.
The autumn leaves at dusk are particularly magical, making it an excellent photo spot for photography enthusiasts.
Winter’s Snowscape
In winter, you can see Arato Castle covered in snow. The snow-covered castle ruins are enveloped in silence, creating a solemn atmosphere. The low number of visitors in winter allows for a leisurely exploration of the castle grounds, which is a major attraction.
However, be aware that the snow and ice can make the ground slippery during winter, so exercise caution when visiting.
Access to Arato Castle
Access by Car
The most convenient way to access Arato Castle is by car.
- From Sakaki IC on the Joshinetsu Expressway: Approximately 20 minutes
- From Koshoku IC on the Joshinetsu Expressway: Approximately 25 minutes
There is a free parking lot at the foot of the castle ruins, from which you can walk to the castle grounds. The hike from the parking lot to the castle grounds takes approximately 15 to 20 minutes, but the path is well-maintained and easily manageable for those in good health.
Access by Public Transportation
The following routes are available when using public transportation.
- From JR Shinonoi Line “Togura Station”: Approximately 10 minutes by taxi
- From Shinano Railway “Togura Station”: Approximately 10 minutes by taxi
Since bus services from Togura Station are limited, taking a taxi is the most practical option. If you are staying in Kamiyamada Onsen, it’s about a 5-minute taxi ride from the hot spring town.
Access on Foot (from Kamiyamada Onsen)
It is also possible to access the castle on foot from the Kamiyamada Onsen town. The hike from the hot spring town to the foot of Arato Castle takes about 30 minutes, and from there to the castle grounds takes about 20 minutes, for a total of approximately 50 minutes.
This route is recommended for those with strong legs or those who enjoy a stroll, but since you will be walking on a mountain trail, comfortable shoes and clothing are necessary.
Opening Hours, Admission Fees, and Facility Information
Opening Hours
- April to September: 9:00 AM to 6:00 PM
- October to March: 9:00 AM to 5:00 PM
Last entry is 30 minutes before closing.
Closed Days
- Mondays (or the following day if Monday is a public holiday)
- New Year’s Holidays (December 29th to January 3rd)
*During peak seasons such as cherry blossom and autumn foliage season, the museum may be open on Mondays. We recommend checking official information before visiting.
Admission Fees
- General Admission: 300 yen
- High School and University Students: 200 yen
- Elementary and Junior High School Students: 100 yen
- Preschool Children: Free
Group discounts and disability discounts are available; please inquire at the ticket counter for details.
Facility Information
- Parking: Free (approximately 30 regular cars)
- Restrooms: Available in the parking lot and within the castle grounds
- Accessibility: Difficult for wheelchair users due to the mountain trail
- Dining Facilities: None within the castle grounds, but numerous restaurants are available in the Kamiyamada Onsen hot spring area.
Tourist Attractions Around Arato Castle
Visiting Arato Castle will make your trip more fulfilling if you also visit the surrounding tourist attractions.
Kamiyamada Onsen
Kamiyamada Onsen, located about 5 minutes by car from Arato Castle, is a hot spring town along the Chikuma River. With a history of over 120 years since its opening, it is known for its skin-beautifying properties. There are also many day-trip bathing facilities, making it a great place to refresh yourself in the hot springs after exploring Arato Castle.
Tokura Kamiyamada Onsen Manyo Ultrasonic Hot Spring
This day-trip hot spring facility in the Kamiyamada Onsen area offers a variety of baths. Its diverse facilities, including ultrasonic baths, jet baths, and open-air baths, are particularly appealing.
Obasute Rice Terraces
Located about 20 minutes by car from Arato Castle, the Obasute Rice Terraces boast a beautiful landscape and have been selected as one of Japan’s Top 100 Rice Terraces. It is particularly known as a famous spot for moon viewing, with the phenomenon of “moon reflected in every rice paddy” being especially famous.
Mori Shogunzuka Tumulus
The Mori Shogunzuka Tumulus, a representative historical site of Chikuma City, is a keyhole-shaped burial mound approximately 100 meters long, built in the late 4th century. From the top of the tumulus, you can enjoy a panoramic view of the Chikuma River basin and experience the perspective of ancient rulers.
Apricot Village
Chikuma City is also known as Japan’s top apricot producing area. In early April, approximately 50,000 apricot trees in “Apricot Village” bloom simultaneously, creating a spectacular sight of the entire mountain covered in pink blossoms.
Points to Note and Advice When Visiting Arato Castle
Clothing and Items to Bring
Arato Castle is a mountain castle, and you will need to hike a mountain trail from the parking lot to the castle grounds. We recommend the following preparations:
- Comfortable walking shoes: Sneakers or hiking boots are ideal. Avoid heels and sandals.
- Comfortable clothing: You will be walking on stairs and slopes, so comfortable clothing is necessary.
- Drinks: There are no vending machines inside the castle, so bring your own drinks.
- Hat and sunscreen: The sun is strong in the summer, so sun protection is necessary.
- Warm clothing: The mountaintop is cold in winter, so dress warmly.
Estimated time required
For a visit to Arato Castle, including round-trip travel from the parking lot, allow approximately 1 hour 30 minutes to 2 hours. If you plan to carefully view the exhibits or enjoy taking photos, we recommend allowing even more time.
Best season
Arato Castle can be visited year-round, but the following seasons are particularly recommended:
- Spring (mid-to-late April): Cherry blossom season
- Autumn (late October to early November): Best time to see autumn leaves
- Early Summer (May to June): Beautiful fresh greenery and pleasant weather
Please note that mid-summer is extremely hot, and mid-winter may see snow.
Photography Tips
Arato Castle is an excellent spot for photography. You can take impressive photos from the following points:
- View of the Chikuma River from the turret: A spectacular view from a high vantage point.
- Castle gate and buildings: The restored buildings evoke the atmosphere of the Sengoku period.
- Collaboration of cherry blossoms, autumn leaves, and the castle: The combination of seasonal flowers, autumn leaves, and castle architecture is breathtaking.
- Castle at sunset: The castle illuminated by the setting sun creates a fantastical atmosphere.
Arato Castle and Film/Drama Locations
Arato Castle, with its authentically restored buildings and beautiful scenery, is a popular filming location for movies and dramas. It’s particularly popular for historical dramas, having been used in numerous productions, including NHK’s Taiga dramas.
Walking through the castle grounds, you can enjoy imagining where certain scenes were filmed. For fans of historical dramas, it’s a valuable spot to experience the world of the works firsthand.
Summary | Arato Castle: A Famous Place in Chikuma City Where You Can Enjoy Sengoku Romance and Spectacular Scenery
Arato Castle in Chikuma City, Nagano Prefecture, is a historical park with many attractions, faithfully restoring a mountain castle from the Sengoku period. Its historical background as the stage for battles between the Murakami and Takeda clans, the restored buildings, the spectacular views overlooking the Chikuma River, and the natural beauty of the four seasons all captivate visitors.
One of the charms of Arato Castle is that it offers a variety of ways to enjoy it, such as combining it with a visit to Kamiyamada Onsen hot springs or exploring the surrounding historical sites. It’s a recommended spot not only for those interested in history, but also for those who want to enjoy nature and scenery, and for photography enthusiasts.
When you visit Nagano Prefecture, be sure to visit Arato Castle in Chikuma City and experience the appearance of this Sengoku period mountain castle and the breathtaking views it offers. It’s sure to be an unforgettable memory.
