Takanoyu Onsen Yamagata Shinkansen (Shinjo Station). Takanoyu Onsen Takanoyu Onsen (♨鷹の湯温泉) is one of several hot spring resorts in the Akinomiya Hot Spring Resort area of Yuzawa, a town in southern Akita Prefecture. The onsen is nestled in a small gorge along the banks of the Yakunai River. Because of its secluded location, it is referred to as a Hitou, or hidden hot spring. Legend has it that the Akinomiya Hot Springs, the oldest in Akita Prefecture, were found 1,200 years ago. Local legend also has it that Takanoyu, or Falcon's Hot Spring, got its name when a falcon led a hunter
Tamagawa Hot Spring strontium and calcium. The hokutolite is about ten times as radioactive as the standard background. There are two lodging facilities available in the area, Tamagawa Onsen, an inn located near the spring (opens from mid April to December, and closed for winter since 2012 due to the avalanche on February 1, 2012, which killed 3 people), and Shin-Tamagawa Onsen, a hotel about a kilometer down from the spring which opens year-round, run by the sane owner of Tamagawa Onsen inn. Tamagawa Onsen inn and the spring area are only accessible by a snowcat in December after the road is closed