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