Four Villages at the End of the Road
Drive south from Yamanaka Onsen into the hills of Kaga and the valley keeps narrowing until the asphalt simply stops. The last village, Ōzuchi, has no road leading out the far side. Beyond its houses the mountains close in. These four settlements, Aratani, Imadachi, Ōzuchi, and Suginomizu, make up Kaga Higashidani, a 151.8-hectare district that the national government selected as an Important Preservation District for Groups of Traditional Buildings on 29 November 2011.
The name means "east valley." It distinguishes the area from Nishidani, the "west valley" along the Daishōji River, where a parallel string of villages once stood. Both lay deep inside territory the Daishōji domain called the okuyamagata, the deep-mountain district. Twenty-one villages formed across these uplands during the Edo period, and eight of them carried a charcoal levy that supplied the entire official charcoal requirement of the domain.
What separates Higashidani from an ordinary rural valley is visible the moment you arrive. Rows of two-storey farmhouses sit roofed in reddish-brown pantile, and along each ridgeline a small raised box breaks the line of the roof. The colour and that little box are not decoration. They are the signature of a place that lived by burning charcoal.
Charcoal, Snow, and the Slow Emptying of the Valley
The houses here were not built by wealthy landlords. They belonged to farming families who also worked the charcoal kilns, and most were rebuilt between the early Meiji period of the 1870s and the 1950s. Older roofs in the valley had been thatch. Red tile reached this part of Kaga in the Meiji era, encouraged by tile-making traditions in nearby Echizen and the Sekishū region further west, and over several decades the thatched roofs gave way to fired pantile.
The raised box on the ridge is a kemudashi, a smoke vent. It sat directly above the irori, the sunken open hearth at the centre of the house, and its job was to let the smoke of the fire escape through the roof rather than fill the rooms. Vents like these became common after the Meiji period. They began to disappear again around the 1960s, once households burned far less wood.
The fate of the valley followed the fate of charcoal. As the national economy accelerated in the late 1950s, young people left for the cities. A punishing snowfall in the winter of 1963 drove out more families. When home heating across Japan shifted from charcoal and firewood to kerosene and bottled gas, villages that had earned their living at the kiln lost the work that held them together. Several settlements in Nishidani vanished completely, some of them beneath a dam reservoir. Higashidani thinned, but it did not disappear, and that survival is the reason there is anything left to protect.
Why the Whole Valley Was Protected
Most heritage designations in Japan cover a single building or a compact group of them. Higashidani's protection covers something larger and harder to draw a line around: an entire working landscape. The district was selected under criterion three of the preservation system, which recognises a group of traditional buildings together with its surrounding environment as a distinct expression of regional character.
That phrase "surrounding environment" is doing real work here. The protected area is not only the houses. It takes in roughly 136 traditional buildings, including main houses and storehouses, alongside more than 240 structures such as stone retaining walls, torii gates, and stone monuments, and around 58 environmental features such as old roads, terraced paddies, and watercourses. The stone-built terraces that hold the slopes, the channels that carry water between houses, the old paths that connect one village to the next: all of it is read as a single historic whole.
Higashidani was the second part of Kaga City to receive this status, following the coastal shipowners' village of Kaga Hashitate, designated in 2005. The valley had already drawn notice in 2010, when a body affiliated with the Japanese National Commission for UNESCO registered it as a "Future Heritage" project under the name "the village of red tile and smoke vents."
Reading a Higashidani Farmhouse
The main houses share a layout common across the Kaga plain, here adapted to a tight mountain valley. Each is two storeys, built with a gabled roof whose gable end faces the street, and wrapped on all four sides by low lean-to roofs called geya. The outer walls are clad in horizontal cedar weatherboard, weathered to a deep brown that sets off the red of the tile above.
Step toward the entrance and the interior plan becomes legible. The door opens onto the niwa, an earthen-floored work space that runs deep into the house, and from there into the oe, the main living room with the hearth. At the boundaries between rooms stand thick continuous pillars, tōshibashira, rising unbroken through both floors. This sturdy frame is one of the defining features of the local building tradition, and it is part of why so many of these houses are still standing.
The four villages are worth treating as four distinct places rather than one. Aratani, closest to the valley entrance, is the largest of the group. Imadachi keeps a dense cluster of tiled, vented houses from the Meiji and early Shōwa years. Ōzuchi sits at the very end of the drivable road, and with only a handful of residents it has an unusually quiet, set-apart feeling. Suginomizu, the southernmost village, shows the same red roofs framed by forested slopes and a running stream.
Visiting the Valley
Allow two to three hours for a proper visit. The four villages are genuinely spread out, and the stretch between Ōzuchi and Suginomizu in particular takes time to cover. The reward for that time is a landscape with very little modern intrusion: tiled roofs, stone walls, paddies, and water, held inside steep wooded ridges.
For a closer look at how these houses worked, there is a small museum in the valley devoted to the red tile and the smoke vent, housed in an old farmhouse. It is the most reliable way to see an interior, since the houses themselves are private property and cannot be entered. A few small businesses have also opened among the old buildings, including a soba restaurant and a shop selling muffins, though opening days are limited and worth checking in advance.
A car is the practical way in. The valley lies roughly 17 kilometres from the Kaga interchange on the Hokuriku Expressway, and public transport into the settlements is very limited. Many visitors combine Higashidani with Yamanaka Onsen, the hot-spring town just to the north, whose Kakusenkei gorge offers a riverside walk. Kaga Hashitate, the city's other preservation district, makes a natural pairing for anyone interested in how differently a fishing coast and a charcoal valley built their houses. The mountain temple of Natadera lies within easy reach as well.
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Q&A
- Can I go inside the farmhouses?
- The houses in the four villages are private property, and several are still lived in, so they are not open to visitors. To see an interior with a hearth and smoke vent, visit the small old-house museum within the district.
- How do I reach Higashidani without a car?
- Public transport into the valley is very limited. The most reliable option is to rent a car near Kaga Onsen Station or Yamanaka Onsen and drive in. Distances between the villages make a vehicle useful once you arrive.
- When is the best season to go?
- Late spring through autumn is the most comfortable window. The valley receives heavy snow in winter, which can make the roads into the settlements difficult, so a winter visit needs checking ahead.
- Is there anywhere to eat?
- A small soba restaurant and a few other shops operate among the old houses, but their opening days are limited. It is worth confirming hours before you set out, particularly outside the main season.
- Why are the roofs red?
- The reddish-brown pantile spread through this part of Kaga in the Meiji era, replacing earlier thatch. The colour came to define the local landscape, and keeping it consistent is now part of the preservation effort.
Basic Information
| Name | Kaga Higashidani (Kaga-shi Kaga Higashidani) |
|---|---|
| Location | Aratani, Imadachi, Ōzuchi, and Suginomizu, Yamanaka Onsen area, Kaga City, Ishikawa Prefecture |
| Designation | Important Preservation District for Groups of Traditional Buildings; type: mountain village |
| Date selected | 29 November 2011 |
| Selection criterion | Criterion (iii): a group of traditional buildings and its surrounding environment that distinctly express regional character |
| Area | Approx. 151.8 hectares (about 5,280 m east to west, 4,950 m north to south) |
| Protected elements | Approx. 136 traditional buildings, over 240 structures, and around 58 environmental features |
| Access | Approx. 17 km from Kaga IC on the Hokuriku Expressway; a car is recommended |
| Inquiries | Cultural Affairs Division, Kaga City (Tel: 0761-72-7888) |
References
- National Database of Designated Cultural Properties, Agency for Cultural Affairs
- https://kunishitei.bunka.go.jp/bsys/maindetails/103/00000097
- Cultural Heritage Online, Agency for Cultural Affairs
- https://online.bunka.go.jp/heritages/detail/226782
- Ishikawa Prefecture: Preservation Districts for Groups of Traditional Buildings
- https://www.pref.ishikawa.lg.jp/kyoiku/bunkazai/denken/6.html
- National Council of Preservation Districts for Groups of Traditional Buildings
- https://www.denken.gr.jp/archive/kaga-kagahigashitani/index.html
- Hot Ishikawa Tabinet (Ishikawa Prefecture official tourism site)
- https://www.hot-ishikawa.jp/spot/detail_4888.html
Last verified: 2026.05.26