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SesshouGawara means "Life Killing Riverbed" in English. Hydrogen sulfide gas is constantly coming up by volcanic activity. You can find natural sulfur that volcanic gas is reacted (hydrogen sulfide + sulfur dioxide) and cooled down. 

When the gas concentration becomes dangerously high for human,  siren will blare to warn you. It is very dangerous so be careful when you visit. (2017年9月)

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Mt MotoShirane, 2km south from the Yugama erupted on Jan 23, 2018 after silence for 3,000 years. (2018. Jan)





Kusatsu, Kusatsu-machi, Agatsuma-gun, Gunma-ken 


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