Lake Ashi YUMOT LAKE NIKKO 168 [ID] 4726 [Photographer] unknown [Album] [Place] Nikko [Date] unknown [Color] color [Size] 253x200 [Cabinet] 93-18-0 [Keyword] lake/inn/hot springs This is a photograph of Yunoko Lake and the houses of the spa at Oku-Nikko. The land to the right is Usagi Island. The mountain visible in the back is Onsengadake. Passing over Konsei Pass, the road leads to Numata in Gunma Prefecture. Yumoto Spa is said to date back to 778 when it was found and named Yakushi-yu.