CastleMountain castle (yamajiro)Next 100 Fine Castles No. 166
What makes this castle distinctive
The marks left when the shogunate had it torn down in 1615 are still there on the mountaintop.
Why?
After the lord, Fukushima Takaharu, was stripped of his domain in 1615 on suspicion of siding with the Toyotomi in the Summer Siege of Osaka, Kobori Enshu and others demolished the castle (shirowari). Excavations have clearly revealed how the gates, turrets and palace were dismantled and the stone walls and foundation stones broken. A letter from Enshu about the work also survives, making this a rare case where we know in detail how a castle was taken apart.[1][2]
The main enclosure and keep enclosure on the summit, with the surrounding belt baileys and entrances.
What to look at
Stone walls knocked down to a low height, the sites of the entrances (koguchi), and the open ground of the main enclosure.
Why it's interesting
Excavations since 1995 showed that the main enclosure and its surroundings were walled entirely in stone, with a main palace and tile-roofed tamon turrets. The walls survive only in part because the 1615 demolition covered the whole of the keep, main enclosure and belt baileys. The traces of that demolition are themselves the castle's main sight.[1][2][3]
Can you see it?
Partly visibleThe summit is open, but some areas are closed because of disaster damage, and recovery work is under way.
The Omine mountains and the castle town from the keep base
Where
The keep base on the summit, about 470 m above sea level.
What to look at
The Yoshino and Omine mountains to the south, Mt. Nukui ("Yamato Fuji") to the north, and the old castle town below.
Why it's interesting
The castle was put here because it commands a wide view. Nara Prefecture says standing on the site makes it clear why the Akiyama chose it to control the region. The view from the keep base was registered as a Nara Prefecture Landscape Asset in 2011.[3][7]
Can you see it?
Visible from outsideReached by a mountain path from below. No lighting at night.
The Kasuga Gate site and the preserved castle town
Where
The Kasuga Gate site on the approach to Kasuga Shrine, and the Matsuyama townscape stretching north–south below it.
What to look at
The stone walls of the gate site, and streets lined with townhouses built from the late Edo period to the early Showa era.
Why it's interesting
The town began as the Akiyama clan's settlement below the castle and was greatly expanded by Toyotomi-allied lords. It kept thriving as Uda's commercial center after the castle was demolished, and in 2006 it was designated a national Important Preservation District for Groups of Traditional Buildings. Being able to walk castle and town together is what sets this site apart.[4][5][6]
Can you see it?
Visible from outsideThe streets and gate site are free to walk.
At a glance for visitors
Nearest station
from Nara Kotsu Bus "Ouda" stop
Climb
Steep climb
Time neededEditors' estimate
Allow 2–3 hours to walk from the roadside station to the ruins and back, plus the old town.
Admission
Not confirmed
Hours
9:00–17:00
Access
Partly open
The ruins are open, but some areas are closed after disaster damage and the city asks visitors never to enter them. Recovery-work vehicles use the access path (closed to private cars). There is no lighting, so visit in daylight. The Continued Top 100 stamp is at the Machikado Lab tourist information center (9:00–17:00, closed December 29–January 4) and at the Uda-ji Ouda roadside station.
Uda Matsuyama Castle began around the mid-14th century, when the Akiyama clan, one of the three leading families of the Uda area, built a castle on top of Mt. Kojo (about 470 m). In their time it was called Akiyama Castle. It was well placed to keep watch over the provinces to the east.[3][1]
02
Scholarly interpretation
Toyotomi lords rebuild it in stone
When Toyotomi Hidenaga took over Yamato from Koriyama in 1585, the Akiyama left Uda, and a series of Toyotomi retainers, including Ito Yoshiyuki, Kato Mitsuyasu and Haneda Masachika, held the castle. A major rebuilding is thought to have taken place under Taga Hidetane, lord from 1592, as roof-end tiles bearing the Taga crest have been excavated. Together with Koriyama and Takatori castles, it became one of the pillars of Toyotomi rule in Yamato.[3][5]
03
Historical record
Fukushima Takaharu and the name "Matsuyama"
After the Battle of Sekigahara, Fukushima Takaharu, younger brother of the warlord Fukushima Masanori, became lord in 1600. He rebuilt the castle further, developed the town, and renamed it Matsuyama Castle. But in 1615, during the Summer Siege of Osaka, he was suspected of secretly siding with the Toyotomi and lost his domain.[3][5]
04
Historical record
Demolition by Kobori Enshu
In 1615, on the shogunate's orders, Kobori Enshu and others demolished the castle. Gates, turrets and the palace were taken down across the keep, main enclosure and belt baileys, and stone walls, steps and foundation stones were broken up. In 1997 a letter in Enshu's own hand was found in Tokyo, asking for help because there were not enough laborers for the demolition; it is now in the Nagahama Castle Historical Museum.[2][3]
05
Historical record
Excavations, then national protection
Excavations since 1995 have revealed a stone-walled castle and the layout of its main palace. The site became a National Historic Site in 2006, with an area including the northern edge of the castle town added in 2025. In 2017 it was chosen as No. 166 of the Continued Top 100 Japanese Castles. Also in 2006, the Matsuyama district below was designated an Important Preservation District for Groups of Traditional Buildings.[2][3][4][6]
Takaharu loses his domain; Kobori Enshu and others demolish the castle[2][3]
Designated a National Historic Site (area extended in 2025)[2]
Selected as No. 166 of the Continued Top 100 Japanese Castles[3][8]
Buildings and remains
The keep today
Keep lost
Remains show that a keep existed; it was destroyed in the 1615 demolition.
The site today
On top of Mt. Kojo are the main enclosure, keep enclosure, belt baileys and other baileys, with partly surviving, pulled-down stone walls. No buildings remain. The castle town below is a preserved historic district. Some areas of the ruins are closed after disaster damage, and recovery work is under way.
Site of the gate from the town into the castle; stone walls remain.[5]
Key facts
Type
Castle
Setting
Mountain castle (yamajiro)built on a mountain; expect a climbEditorial article
Period
Medieval (c.1185–1570s), Early modern (1570s–1871)Editorial article
Keep (tenshu)
Keep lostthe castle had a keep, but it no longer stands (its stone base may remain)Editorial article
Built by
Akiyama clanJapan Castle Foundation
Main lords
Katō clan, Akiyama clan, Itō familyJapan Castle Foundation
Abandoned
1615Wikipedia (ja)
Remains to see
Gates, Stone walls, Baileys / enclosures (kuruwa), Trench cuts (horikiri), Fortified gateways (koguchi), Keep base (tenshudai)Editorial article
Designation
National Historic Site (Uda Matsuyama Castle ruins) (2006); Important Preservation District for Groups of Traditional Buildings (Matsuyama, Uda) (2006)Editorial article
Selection
Next 100 Fine Castles No. 166Japan Castle Foundation
Visiting
Access
Partly open
The ruins are open, but some areas are closed after disaster damage and the city asks visitors never to enter them. Recovery-work vehicles use the access path (closed to private cars). There is no lighting, so visit in daylight. The Continued Top 100 stamp is at the Machikado Lab tourist information center (9:00–17:00, closed December 29–January 4) and at the Uda-ji Ouda roadside station.
Nara Kotsu Bus "Ouda" stopAbout 15–20 minutes by Nara Kotsu bus bound for Ouda from Haibara Station on the Kintetsu Osaka Line
Steep climb
Walk through the old town to a trailhead. From the Uda-ji Ouda roadside station, both the Machikado Lab route and the Kasuga Shrine route take about 25 minutes to the ruins. Walking time from the bus stop is not confirmed.[5][10]
No parking at the ruins; use the Uda-ji Ouda roadside station. About 30 minutes from Hari IC on the Meihan National Highway, or 40 minutes from Katsuragi IC on the Minami-Hanna Road. Senkensha has two tandem spaces, but they are tight.[5]
Checked: 2026-10-03
Grounds opening hours
No official hours confirmed; visit in daylight as there is no lighting.[6]Checked: 2026-10-03
Time neededEditors' estimate
Allow 2–3 hours to walk from the roadside station to the ruins and back, plus the old town.
Steps, slopes and footing
The Kasuga Shrine route is an unpaved mountain path with poor footing. The route behind Machikado Lab is a red-gravel path.[6][5]
Wheelchairs and strollers
Mountain paths only; not suitable for wheelchairs.[5]Checked: 2026-10-03
Toilets and rest
Not confirmed
English signs / audio guide
Not confirmed
Seasons
Not confirmed
Photography
Not confirmed
Works, closures and restrictions
Hornets have been seen on the site. There are areas closed by disaster damage and recovery work (city notice updated April 1, 2025).[6]Checked: 2026-10-03
Suggested routes
From the roadside station via the Machikado Lab route 25 min
Park at the Uda-ji Ouda roadside station
Walk through the old town to Machikado Lab (stamp and excavated finds)
Go through Machikado Lab, or take the lane beside Senkensha three doors down, up the hill
Climb the red-gravel path to the ruins on the summit
One-way time from the roadside station to the ruins, per the Uda tourism association. Coming down via the Kasuga Shrine route (about 25 minutes, unpaved) lets you see the gate site too.
A long north–south townscape between the castle hill and the Uda River, with townhouses from the late Edo to early Showa periods.[4]
Checked: 2026-10-03
Editors' guide
An editorial guide based on sources and confirmed information — not a first-hand visit report.
Who will enjoy it
Good for those who like reading history from a demolished castle's remains, fans of old townscapes, and anyone who enjoys a mountaintop view.
What makes it interesting
On the summit, look at the remains of the pulled-down walls and the size of the main and keep enclosures, and take in the Omine range and the town from the keep base. Below, walk the Kasuga Gate site and the streets of townhouses together to see how castle and town fit.
Before you go
There are no buildings and the walls survive only in part. There is no parking at the ruins, and some areas are closed for repairs. Wear good walking shoes and go in daylight.
Ways to enjoy it
Visit Machikado Lab first to see the excavated roof-end tiles and its 3D video, so you can picture the castle before it was demolished.
Photos
Visitor reviews
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Open questions
The founding date is uncertain, given as around the mid-14th century or the Nanbokucho period.
Dating the major rebuilding to Taga Hidetane is an inference from the crested tiles. When Fukushima Takaharu renamed the castle is also debated.
The photos were taken between 2009 and 2020 and do not show later disaster damage or recovery work.
Walking time from the bus stop, toilets, seasonal highlights, photo rules, English signage and the extent of the closed areas could not be confirmed.
Saigen JiroCC0Wikimedia Commons
