Revision of elevations of Japan’s main mountains
Mountain elevations changed in accordance with elevation results revision for triangulation points
On April 1, Geospatial Information Authority of Japan (GSI) revised the elevation values in the “Catalog of Japan’s Mountain Elevations - 1,003 Mountains”, which lists the elevations of Japan’s main mountains.
This revision was to update the elevation results of triangulation points throughout Japan, based on the development and spread of new survey technologies such as GNSS surveys.
The “Catalog of Japan’s Mountain Elevations - 1,003 Mountains” is compiled by GSI based on results from basic survey such as 1:25,000 topographic map, having conducted inspections and supplementary survey regarding the names of Japan’s main mountains and the position/elevation of their highest points. The elevation values of the highest sites are either the elevations of triangulation points or the values measured by means of photogrammetry or field survey.
On April 1, the elevation values (in units of m) in the “Catalog of Japan’s Mountain Elevations - 1,003 Mountains” were revised in accordance with the nation-wide revision of elevation results of triangulation points.
From this, of the 1,003 mountains, 48 had their elevation values changed by +1m and 39 by -1m.
The “Catalog of Japan’s Mountain Elevations - 1,003 Mountains” can be browsed from the following website (Japanese only).