Okususobana Valley
This area includes the headwaters of Susobana-gawa River.
It was designated as one of the 100 best water-source forests by the Forestry Agency, and it was also designated as a place of scenic beauty by Nagano Prefecture.
From the beginning to the end of October, the scenery of the valley looks like a beautiful Japanese painting because it reflects the image of mountains with its red and yellow leaves.