Japan National Route 231

National Route 231 shield

National Route 231
国道231号
Route information
Length: 129.2 km (80.3 mi)
Highway system
National highways of Japan
Expressways of Japan

National Route 231 is a national highway of Japan connecting Kita-ku, Sapporo and Rumoi, Hokkaidō in Japan, with a total length of 129.2 km (80.28 mi).

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