Kosho-san (古処山) one of the four mountains of Senzu (千手).

During The Residency Kosho-san (and the two other mountains, Umami-san and Hei-zan) will be the focus of most outdoor activities.The Kama City Office also provides various information about trekking routes through the mountain.

To get a good idea of what Kosho-san is like, please watch the below commercial made for Doccomo NTT in Kosho-san.