Thirty-three meters of blue stone
The Former Kawanoishiura Village Headman Ninomiya Family Residence Stone Wall (旧川之石浦庄屋二宮家住宅石塀) is a late Edo-period stone wall in Kawanoishi, Honaicho, Yawatahama City, Ehime Prefecture, listed as a Registered Tangible Cultural Property on 14 February 2002. It runs 33 meters and encloses what was once the residence of the village headman, in the middle of the old port town.
A shōya, or village headman, was the local official of the Edo period who collected the annual rice tax and ran village affairs. The Ninomiya family held that post at Kawanoishiura, and this wall marked the boundary of their compound. The Agency for Cultural Affairs dates the work to the late Edo period, giving a range of 1830 to 1867.
The stone is chlorite schist, known locally as aoishi, blue stone. It occurs from Yawatahama out along the Sadamisaki Peninsula and has long been used for house foundations and for the retaining walls of terraced citrus fields. It splits into thin sheets and breaks along flat faces.
A technique that came before the finished style
The Former Kawanoishiura Village Headman Ninomiya Family Residence Stone Wall was entered on the register of Registered Tangible Cultural Properties under the criterion of being difficult to reproduce. Its registration number is 38-0024, from the 32nd round. What earned the listing was not beauty of form but the fact that nobody builds this way any more.
According to the agency's description, blue schist pieces of many different sizes are fitted together at sharp angles, producing something close to yahazu-zumi. That is the arrangement in which stones are tilted and laid alternately so the joints run in chevrons, like the notched end of an arrow. The finished version of the technique can be seen on the embankment of the Miyauchi River nearby. This wall is understood as a stage before that style was fully worked out.
Front and back are built differently, and the contrast is easy to read. On the side facing the old compound, larger stones are used and the top is finished with flat slabs. On the rear face the stones are smaller and set more irregularly. The mason spent his effort where it would be seen.
Yawatahama City describes the stonework surviving at the former headman's site as having been put up for fire protection, and calls the practice of laying natural blue stone at sharp angles a rare survival. The city also records that the storehouse on the property dates from 1862, and that a blue-stone lantern over three meters tall and a well remain there.
Reading the wall as you walk it
The first thing you notice is that no two stones match. This is not a wall of dressed blocks laid in courses. Quarried schist went up more or less as it came, each piece angled until it bit against its neighbors. Hardly a joint runs straight; the lines slant, reverse, and slant again.
Thirty-three meters takes under a minute to walk. Go slowly and the tilt of the stones changes along the way, which is the record of a mason making a fresh judgment at every course.
The row of flat slabs along the top sheds rainwater and keeps it out of the core of the wall. Take that row away and an otherwise identical pile of stone has a far shorter life.
Blue stone looks grey-green when dry. Wet, the green comes forward. Visit after rain, or on an overcast day, and the whole length of the wall reads as a single color.
Kawanoishi prospered from the late Edo period into the early twentieth century on shipping, copper, wax, silkworm eggs and spinning. Yawatahama City records that the founding office of the Uwa Spinning Company was set up on this headman's property in 1887. An Edo-period wall therefore stands on the same ground where the district's modern industry began.
Visiting
The Former Kawanoishiura Village Headman Ninomiya Family Residence Stone Wall appears to be privately owned; the owner field in the national database is blank. Because it is a boundary wall rather than a building, the stretch facing the public road can be looked at freely from outside. The grounds behind it are private and closed. There is no interior to visit, and passing the gate or entering the property is not permitted.
Nothing is charged and no hours apply. The wall stands in a residential neighborhood, so avoid lingering early in the morning or after dark. No notice forbidding photography was found, but frame your shots to keep neighboring houses out.
By public transport, start from Yawatahama Station on the JR Yosan Line. Take an Iyotetsu Nanyo Bus bound for Ikata Town Hall and get off at Honai Chosha-mae, about 25 minutes, then walk roughly 10 minutes.
A community facility for the Kawanoishi district stands next to the wall, and there is parking for people walking the old town nearby. Drivers should use that rather than stopping on the lane.
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Q&A
- Can visitors see the Former Kawanoishiura Village Headman Ninomiya Family Residence Stone Wall, and is there a fee?
- The section facing the public road can be viewed from outside at no charge. The grounds are private and not open, so there is no interior visit and you should not pass the gate. Keep to the roadside.
- How do I reach the Ninomiya Family Residence Stone Wall from the nearest station?
- Yawatahama Station on the JR Yosan Line is the nearest. Take an Iyotetsu Nanyo Bus toward Ikata Town Hall, ride about 25 minutes to Honai Chosha-mae, and walk roughly 10 minutes. Drivers can use the town-walking car park nearby.
- What stone was used for the Ninomiya Family Residence Stone Wall?
- Chlorite schist, called aoishi or blue stone in this district. It is quarried between Yawatahama and the Sadamisaki Peninsula and appears in house foundations and terrace walls all over the area. It splits into thin flat pieces, which suits laying at an angle.
- Why was the Former Kawanoishiura Village Headman Ninomiya Family Residence Stone Wall listed?
- Under the criterion of being difficult to reproduce. Fitting blue stones of mixed sizes at sharp angles represents a stage before the chevron style of masonry was fully developed, and the skill is no longer practised.
- Is photography allowed at the Ninomiya Family Residence Stone Wall?
- No notice prohibiting it was found. The wall is in a lived-in neighborhood, so shoot from the public road, keep neighboring houses and residents out of frame, and do not stay long.
Basic Information
| Name | Former Kawanoishiura Village Headman Ninomiya Family Residence Stone Wall |
|---|---|
| Location | 3-banko 10-1 Kawanoishi, Honaicho, Yawatahama City, Ehime Prefecture |
| Designation | Registered Tangible Cultural Property (structure) |
| Year Designated | Registered on 14 February 2002 |
| Quantity | 1 structure |
| Dimensions | Stone construction, 33 meters long |
| Owner | Private (the owner field in the national database is blank) |
| Public Access | Grounds closed to the public; exterior viewable from the public road |
References
- Agency for Cultural Affairs, National Cultural Properties Database — Former Kawanoishiura Village Headman Ninomiya Family Residence Stone Wall
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00002697
- Yawatahama City — The Meiji-era Townscape
- https://www.city.yawatahama.ehime.jp/doc/2014091200025/
- Yawatahama City Board of Education, Division of Cultural Promotion
- https://cms.city.yawatahama.ehime.jp/soshiki/kyoikuiinkai/bunkashinkou/
- Yawatahama City — Transport Guide
- https://www.city.yawatahama.ehime.jp/doc/2020081800014/
Last verified: 2026.09.05