What Is Ōya History Museum? Explore Utsunomiya's Underground Stone Quarry
At Ōya History Museum (Ōya Shiryōkan) in Ōya-machi, Utsunomiya, Tochigi Prefecture, you can walk through an enormous former underground quarry created by extracting Ōya stone.
The main attraction is the former underground quarry, which covers approximately 20,000 square meters at a depth of about 30 meters, where you can take in both the vast space left by stone extraction and the traces of work on the walls.
Walk Through an Underground Space Quarried Over About 70 Years
This underground space took shape through approximately 70 years of continuous Ōya stone quarrying from the Taishō period into the Shōwa period.
As you walk beneath the rock walls and pillars, you realize that the very place where stone was extracted is now the attraction.
Imagining all the stone that once filled the space being carried away may draw your attention to the accumulated labor as well as the sheer scale.
What Is Ōya Stone? A Building Material Linked to Utsunomiya Life and Japan Heritage
Ōya stone is the collective name for rhyolitic breccia tuff quarried around Ōya-machi in Utsunomiya and used in buildings, storehouses, walls, and other structures.
The tuff formations from which it comes are thought to have formed through underwater volcanic eruptions approximately 15 million years ago.
Utsunomiya is said to have 9,000 Ōya stone buildings, and increasing numbers are being converted into cafés, galleries, and other spaces.
On May 24, 2018, the cultural story “Utsunomiya, Home of Oya Stone Underground Adventure” was recognized under Japan Heritage, a national program highlighting local cultural stories, with the museum's former underground quarry, the Kaneiriyama quarry site, included among its component cultural properties.
Looking at the city's stone buildings after visiting the quarry helps connect the underground landscape with everyday life.
Even without specialist knowledge of history or architecture, noticing the stone's surfaces and how it is used adds interest to a walk around Utsunomiya.
What to See in Ōya History Museum's Underground Quarry
Alternating between the overall scale of the underground chambers and the fine marks on the stone surfaces deepens your appreciation of the scenery.
Understand the Quarry's Structure Through Its Remaining Pillars and Ceiling
The former underground quarry at Ōya History Museum was created by first cutting sideways using kakine-bori, or horizontal quarrying, then digging downward with hiraba-bori, or downward quarrying, while leaving pillars in place—a progression described as “from kakine-bori to hiraba-bori.”
Comparing the remaining pillars with the spaces between them makes it easier to imagine how the stone was removed.
When looking upward, stop walking and choose a place where you will not obstruct others before studying how the ceiling and walls join.
Imagine the Stonemasons' Work Through Their Pickaxe Marks
The stone surfaces still bear pickaxe marks from the era of hand quarrying.
Hand-cut hiraba-bori leaves horizontal marks, while kakine-bori leaves vertical marks.
From the mid-Edo period, when quarrying expanded, until mechanization progressed around 1960, the main equipment consisted of little more than a few types of pickaxe and a shoiko, a wooden carrying frame used to transport stone on the back.
Extracting a single block called a rokutō, measuring approximately 18 cm thick, 30 cm wide, and 90 cm long, is said to have required 4,000 swings of a pickaxe.
In the days of hand quarrying, each stonemason could extract about 10 blocks a day and carried each 150 kg stone out of the quarry on their back.
Connecting the direction of the marks with the direction of excavation turns the patterns on the walls into a record of the work.
Quarrying terminology is easier to understand when you distinguish terms describing the direction of excavation from those describing the type of quarry.
| Term | What It Describes | Meaning |
|---|---|---|
| Hiraba-bori | Direction of excavation | Digging downward |
| Kakine-bori | Direction of excavation | Digging horizontally |
| Open-pit quarrying | Type of quarry | Removing surface soil and excavating downward from above using hiraba-bori |
| Underground quarrying | Type of quarry | Excavating underground using a combination of kakine-bori and hiraba-bori |
Traces of open-pit quarrying, considered an early form of Ōya stone extraction, can also be seen near the museum parking lot and on the stone wall facing it.
See the Underground Scenery as a Film and Music Video Location
The underground space has also been used as a filming location for movies, television dramas, music videos, and television commercials.
Productions filmed here include the 2024 movie Cells at Work! (Hataraku Saibō) and the 2021 television drama Ichikei's Crow (Ichikei no Karasu).
It has also hosted concerts and art exhibitions and served as an underground church, attracting attention as an event venue.
Comparing illuminated walls with areas in shadow reveals different depths and moods within the same stone space.
Even when searching for places featured on screen, stay within the visitor areas and follow the on-site guidance.
What to Wear to Ōya History Museum: Bring a Jacket and Comfortable Shoes Even in Summer
For an underground visit, choose clothing with both the cold and ease of movement in mind so you can enjoy the scenery comfortably.
The Quarry Is Around 13°C Even in Summer: Bring a Layer
Bring a jacket and check the indoor temperature on the museum website before visiting.
The underground temperature averages approximately 8°C throughout the year and is said to be around 13°C even in summer.
Do not choose your clothing based only on the heat above ground; bring a layer that is easy to put on and take off.
Blanket loans have been suspended, so bring enough layers to adjust to the cold.
Choose Shoes and Luggage That Make Stairs Easy to Navigate
The route underground includes stairs, so familiar, comfortable walking shoes are the best choice.
Arrange your belongings so you can use your hands on the stairs.
- Choose a bag that leaves both hands free
- Keep your jacket easy to take out and put away
- Put your camera or smartphone away while moving
If visiting with children, plan with their ability to handle the stairs at their own pace in mind so you can explore without rushing.
Wheelchairs and Strollers Are Not Permitted: Ask Ahead About Mobility Assistance
Visitors cannot enter using wheelchairs, strollers, or wheeled walkers.
For people who have difficulty walking, underground tours by golf cart are available by advance reservation on weekdays when the service can be provided, at an extra charge in addition to admission.
The service may be unavailable during Golden Week (Japan's spring holiday period), Obon (a summer period for honoring ancestors), or on days with heavy group-bus traffic, media visits, or filming. Same-day reservations are not accepted, so call the museum at 028-652-1232 to confirm availability and conditions.
Ōya History Museum Photography Rules and Visitor Etiquette
Photography inside the museum is subject to rules about equipment, where you stop, and what you photograph.
Before deciding on a composition, check whether you can stand there while keeping the passage clear.
No Tripods or Selfie Sticks: Watch Where You Stop to Take Photos
Tripods, monopods, selfie sticks, and similar photographic equipment are not allowed, and stopping to take photos on stairs, landings, or in narrow passages is also prohibited.
You may not secure a camera to the floor or a handrail, either.
Keep the following points in mind when taking photos.
| Situation | What to Do | What to Avoid |
|---|---|---|
| Holding your camera | Take handheld photos | Using a tripod, monopod, or selfie stick |
| Stairs and narrow passages | Keep people moving freely | Stopping to take photos |
| After taking your photos | Make room for others | Occupying the space |
Be considerate when other people appear in your photos and make room after you have finished so other visitors can enjoy the scenery too.
Cosplay and Photography with Props Require Advance Permission and a Fee
Posed shoots such as model-style photography, photography using dolls or props, and shoots involving cosplay or unusual costumes require a fee, an advance application, and permission.
Photographing for 2 hours or more without permission is also prohibited, so contact the museum in advance if you are planning an extended shoot.
Images and footage taken inside cannot be used commercially without permission, so consult the museum if you intend to use them in advertising or similar projects.
How to Get to Ōya History Museum: Opening Hours and Admission
If traveling by public transportation, checking both the bus from Utsunomiya Station and your return service makes it easier to plan your visit.
About 20–30 Minutes by Local Bus from Utsunomiya Stations
From JR Utsunomiya Station, board at west exit bus stop 6; from Tōbu Utsunomiya Station, use Tōbu Eki-mae bus stop. Take a local bus bound for Ōya or Tateiwa, get off at Shiryōkan Iriguchi bus stop, and walk for about 5 minutes.
The bus journey takes approximately 30 minutes from JR Utsunomiya Station or 20 minutes from Tōbu Utsunomiya Station.
Boarding points differ by station, so check the destination and timetable in Kantō Bus's service information.
The Ōya Sightseeing One-Day Pass, which includes unlimited local bus travel between JR Utsunomiya Station and Ōya/Tateiwa for 1 day, admission to Ōya History Museum, and admission to Ōya-ji Temple, also known as Ōya Kannon, is sold at places including the tourist information center at JR Utsunomiya Station.
Saving the bus stop names in Japanese on your smartphone is also useful when asking for directions.
Driving to the Museum: Check Parking and Navigation Settings
By car, the museum is about 12 minutes, or 8 km, from Utsunomiya Interchange on the Tōhoku Expressway, and about 20 minutes, or 13 km, from Kanuma Interchange.
Ordinary passenger vehicles can use parking lots 2–4 free of charge; parking lot 1 is reserved for group buses and people who have difficulty walking.
The grounds are extensive, and searching by address may direct you into the mountains, so enter the facility name or telephone number into your navigation system.
Check Seasonal Opening Hours, Closed Days, and Last Admission
Opening hours and closed days vary by season, and temporary closures are also possible.
From April through November, opening hours are 9:00 a.m.–5:00 p.m., with last admission at 4:30 p.m., and the museum is open daily during this period.
From December through March, opening hours are 9:30 a.m.–4:30 p.m., with last admission at 4:00 p.m., and the museum closes every Tuesday, or the following day when Tuesday is a public holiday.
The museum closes for the New Year holiday period from December 26 through January 3, and severe weather such as typhoons may cause temporary closures or shorter hours.
When deciding when to arrive, be careful to distinguish closing time from last admission.
Visitors who study the stone surfaces closely and those who focus on photography will move at different speeds, so leave plenty of time for your return journey.
Admission Is 1,000 Yen for Adults, Payable in Cash Only
Admission must be paid in cash.
Admission costs 1,000 yen for adults and 400 yen for elementary and junior high school students; preschool children enter free.
For groups of 20 or more, admission is 800 yen for adults and 350 yen for elementary and junior high school students, and visitors presenting a physical disability certificate pay the same rates as groups.
Check the admission categories before visiting and bring enough cash in Japanese yen for everyone in your party.
Before setting out, check both the visitor information and the latest notices for admission prices and operating details.
Tips for Avoiding Crowds During Obon and Other Long Holidays
The area around Ōya can become crowded during major holiday periods such as Obon and Silver Week, an autumn holiday period in some years.
Temporary parking, extra buses, or park-and-ride bus services may be arranged during busy periods, so check the latest notices before leaving.
For a quieter visit, consider a weekday or arriving just after opening, while also checking for crowds from group visits and other factors.
Enjoying the Exhibition Room and Following Underground Visitor Rules
Thinking about how Ōya stone was quarried, transported, and used lets you appreciate the underground scenery as a part of industrial history.
Check the Exhibition Displays and Any Closures for Renovations
The exhibition room introduces tools such as pickaxes and carrying frames, early machinery and current quarrying equipment, and the history of stone transportation as it shifted from rafts, horse-drawn carts, and mine carts to railways and trucks.
The museum's collection of 203 Ōya stoneworking tools and related materials was registered as a national Registered Tangible Folk Cultural Property on March 24, 2026.
The exhibition room may be unavailable during renovations or other work, so check its opening status separately from that of the underground quarry.
The exhibition room is scheduled to close for renovations from December, with the aim of reopening the following spring, while visits to the underground space will continue as usual.
When tool and work descriptions are accessible, connecting them with the quarry marks you saw underground gives you a clearer picture of the stonecutters' work.
Avoid Eating, Drinking, and Loud Noise Underground
Eating and drinking are prohibited in the underground quarry.
Have drinks or snacks before or after going underground, and check where eating and drinking are permitted.
Please explore quietly, as shouting, playing musical instruments, and dancing on the stone stage are prohibited.
As a rule, entry after drinking alcohol is not allowed, so consider the order of your activities if combining your visit with a meal.
Pets cannot enter, even in cages or bags.
The Shop and Foreign-Language Visitor Information
OYA MUSEUM ROCKSIDE MARKET offers light meals as well as gelato and coffee to go.
Souvenirs include Ōya stone sculptures and Miyazome-dyed tenugui cotton towels, and you can take a break on the outdoor terrace with its wooden deck.
If anyone in your group is unfamiliar with Japanese, it is helpful to ask the museum in advance whether foreign-language visitor materials are available and how to obtain them.
Planning Your First Visit to Ōya History Museum
At Ōya History Museum, rock pillars and hand-cut marks within the approximately 20,000-square-meter former underground quarry reveal the work of extracting Ōya stone and the scale of the resulting space.
Bring a jacket even in summer and wear comfortable walking shoes, and check the photography rules, exhibition room status, opening hours, cash-only admission, and return transportation to enjoy a relaxed first visit.
Afterward, look for stone buildings as you explore the city and enjoy the Ōya stone culture that lives on in Utsunomiya.
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