ANAGLYPH
Kurobe/Tateyama / Toyama prefecture in Japan.
It is a familiar place in the Kurobe Tateyama Alpine route. The Kurobe dam is located in the middle of the Tateyama Kurobe Alpine route which connects Tateyama to Nagano prefecture Oomachi-shi, and it is crowded with sight-seeing in summer.
As for the figure, one side is about 20km.
This figure is using numerical map 50m mesh (altitude) data of the Geographical Survey Institute issue.