- Kuromatsunai Town Council | Kuromatsunai Town Office, 302-1 Kuromatsunai, Kuromatsunai-cho, Suttsu-gun, Hokkaido 048-0101
Rivers
- Kuromatsunai River 1.2KP | Asahino, Kuromatsunai-cho, Suttsu-gun, Hokkaido 048-0116 | Ministry of Land, Infrastructure, Transport and Tourism
- Shubuto River 14.0KP | Kuromatsunai, Kuromatsunai-cho, Suttsu-gun, Hokkaido 048-0101 | Ministry of Land, Infrastructure, Transport and Tourism
- Neppu River 8.9KP | Shiroikawa, Kuromatsunai-cho, Suttsu-gun, Hokkaido 048-0134 | Ministry of Land, Infrastructure, Transport and Tourism