Yashiki Onsen
Koakasawa Onsen
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Official classification
Spring type (therapeutic classes)
Official spring-type name (as recorded)含鉄Ⅱ・ナトリウム・カルシウム-塩化物強塩泉
- Source temperature
- 45°C
- pH
- 6.57
- Flow rate
- Unconfirmed
- Radon
- Unconfirmed
Appearance & feel
Water colour · Feel
Brown
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
Hard to reach by public transport
関越自動車道塩沢石打ICから国道353号・国道117号・県道507号経由、車で90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.
Onsen areas nearby
Register sources
- 小赤沢温泉 - Wikipedia(日本語版)Wikipedia · CC BY-SA 4.0 · 2026-10-09
- Wikidata Q53813259Wikidata · CC0 · 2026-10-09
Data status
Name & locationPublishedCoordinatesPublishedSpring typePublishedPhotosIn preparationFacilitiesIn preparationVisiting info (dated)In preparationEditorial articleIn preparation
Updated 2026-10-09
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