Itoigawa, Niigata / フォッサマグナミュージアム

Fossa Magna Museum

A stone and geology museum in Itoigawa whose six permanent galleries cover jade, the Fossa Magna rift where the Japanese archipelago formed, and natural hazards such as earthquakes and volcanoes.

Last official check

25 Sept 2026

Traveler reports

Reports open in Phase 2

Next scheduled check

24 Dec 2026

Decide before you go

A short summary made from the official facts below. Check the rows for details.

Getting there: Train / Bus / Car
Admission: Paid (see the price below)
Closing days: Closures change with the season

Before you go

Only facts we confirmed on official sources are shown. Anything else is listed under “Not yet confirmed”.

Opening hours

9:00-17:00 (last entry 16:30).

Checked 25 Sept 2026 on a tourism board site

Closed

Closed on Mondays from December to February, on the day after a holiday, and December 28 to January 4 (open if Monday is a holiday, or if the day after a holiday is a weekend).

Checked 25 Sept 2026 on a tourism board site

Admission

Adults 700 yen, children (elementary to high school) 300 yen, preschoolers free (100 yen off for groups of 20+).

Checked 25 Sept 2026 on a tourism board site

Getting there

About 7 minutes by car or by the Miyama Koen Hakubutsukan bus from Itoigawa Station; about 10 minutes by car from Itoigawa IC.

Checked 25 Sept 2026 on a tourism board site

Parking

Car parking available.

Checked 25 Sept 2026 on a tourism board site

Accessibility

Wheelchair accessible, wheelchairs for loan, accessible toilets; baby-changing area and pushchair loan.

Checked 25 Sept 2026 on a tourism board site

Not yet confirmed

Payment

we have not confirmed this on an official source yet. Check with the spot before you go.

Found wrong or outdated information? Let us know

Address: Itoigawa, Niigata (Japanese address: 新潟県糸魚川市大字一ノ宮1313)

Official site: https://fmm.geo-itoigawa.com/

Location

Smaller pins are other spots nearby.

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Nearby spots

Distances are straight-line distances, not travel distances.

Crowds

Not yet confirmed: Crowd level, Best time to visit, Peak time, Busiest days, Busiest season
no official source yet, and not enough traveler reports.
Latest traveler report: None yet

Traveler crowd data by time of day appears after 5 traveler reports (0 so far).

You can check typical busy hours in Google Maps ("Popular times" on the place's page). Open this spot in Google Maps

Visiting respectfully

RulesStone appraisal is only available to visitors holding an appraisal ticket issued in advance.Checked 25 Sept 2026 on a tourism board site

Verification log

25 Sept 2026First check · Tourism board · https://niigata-kankou.or.jp/spot/13680Hours, closing days, fees, access, accessibility, description and coordinates read from a tourism organization's site.