Hamamatsu topographic map

Kamikōchi is a high mountain valley approximately 18 kilometers in length. The average elevation of the valley floor ranges between roughly 1,400 m (4,600 ft) above sea level at the south end and roughly 1,600 m (5,200 ft) at the northern tip.

Average elevation: 2,006 m

Average elevation: 27 m

Average elevation: 37 m

In the 50,000:1 scale topographical map of the “Rusutsu” area published in 1920 by Japan’s Land Surveying Department, the mountain is recorded as "Shiribeshi-Yōtei-zan (Ezo-Fuji)". However, since the name was difficult to read, the town of Kutchan asked for it to be changed to Yōtei-zan. The change…

Average elevation: 1,395 m

Average elevation: 581 m

Average elevation: 335 m

Average elevation: 188 m