01 / The navel
135 east and 35 northcross right here.

In 1923 the army's land survey department fixed the crossing by triangulation and a marker post was raised. In 1990 a GPS survey with the Geospatial Information Authority put the crossing somewhere slightly different, and in 1994 a second monument went up on that spot.
- Marker post of 1923
- New crossing found by GPS in 1990
- Two navel points, Taisho and Heisei

