Hot springs that remain intact Hidden hot spring list(Akita) [Hot springs deep inside Japan]

List of Hot springs in Japan that remain intact or a little bit artificial or artificial with some recomendations.
sangakuonsen.com (*Writen in Japanese.)

sangakuonsen.com (*Writen in Japanese.) for the location of a Mountain on Google map.

(Caution!)
H2S gases or a Bear can be conflict at the site listed below.Please keep out those sites,even if at your own risk. (Must see if you don't know the risk of H2S or anoxia at all. written in Japanese.) anoxia/H2S-Helth department Japan
(*)number of astarisks represents impression. The list of Ryokans with hidden onsen or not known much.

Prefecture	Area-name of SPA	hidden spring type	charge	mix/seperate	impression	comment	image(link)
Aomori	Kawarage jigoku Kawarage Oyu waterfall	remain intact	Free	Mix	***	A feature of hot spring and force
Akita	Kosaka and Towada Hachikuro	remain intact	Free	Mix	*****	Mining trial digging system
Akita	Kosaka and Towada Back Hachikuro	remain intact	Free	Mix		Mining trial digging system
Akita	Kosaka and Towada Oku back Hachikuro	remain intact	Free	Mix	*****	Mining trial digging system
Akita	Tamagawa hot spring Bedrock bath	remain intact	Free	Mix	**	Strong acid boiling water scale
Akita	Nyuto Onsenkyo Ippommatsu hot spring	remain intact	Free	Mix	*****	The flower settled down of an R/rent
* There might be some places that described as free in this page but some donations up to you expected.

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