The hot spring sank under water when the construction of Osako dam was completed in 1973, but the hot spring revived later in Yamabatoyu Ryokan Inn when the source was struck by boring.
1973年に大迫ダムが完成した際に温泉はダムに沈んだが、その後ボーリングによって源泉を掘り当て、山鳩湯旅館が営業を始めて温泉は復活した。