Japan prefecture SVG map by Geolonia.
Source: https://github.com/geolonia/japanese-prefectures
Original map: https://raw.githubusercontent.com/geolonia/japanese-prefectures/master/map-full.svg
Original data based on Wikipedia 日本地図.svg (see README-Geolonia.md).
License: GFDL, as declared by original README. GFDL 1.3 text included via SPDX license-list-data.
Retrieved: 2026-10-19
Adaptation: Added ordinary search links, accessible names and data attributes. Original geographic polygon coordinates and transforms unchanged. Colors supplied by the WordPress theme.
The source omits some remote islands, including Ogasawara. This is a simplified navigation map, not a survey map.
Unmodified original SVG and original README are included.