Photo of Mishimadani Onsen
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Hokuriku & Koshinetsu · Onsen area

Mishimadani Onsen

みしまだにおんせん · 三島谷温泉

Niigata · 長岡市

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Official classification

Spring type (therapeutic classes)

Official spring-type name (as recorded)ナトリウムー炭酸水素塩鉱泉

Source temperature
21.5°C
pH
8
Flow rate
Unconfirmed
Radon
Unconfirmed

Appearance & feel

Water colour · Feel

BrownBlack (moor water etc.)

Colour and feel are listed only where a source states them. They vary by day and by bath.

This area has basic information only. In-depth articles are being added.

Facilities in this area

Facilities come from the register (Wikipedia, OpenStreetMap, official sites). Those marked "natural spring unconfirmed" are listed on the basis of their name only.

No facility information yet.

Getting there

Reachable by public transport

JR長岡駅からバスで約40分

Checked
no check date

Visitor reviews

No reviews yet. While the review platform is being prepared, we do not display fictional reviews or ratings.

Review posting is in preparation, with visit date, facility, comments on water, scenery and access, photos, language and reporting.

Register sources

Data status

Name & locationPublishedCoordinatesPublishedSpring typePublishedPhotosPublishedFacilitiesIn preparationVisiting info (dated)In preparationEditorial articleIn preparation

Updated 2026-10-09

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