Japan National Route 237
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| 国道237号 | |
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| Length: | 260 km (160 mi) |
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National highways of Japan Expressways of Japan |
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National Route 237 is a national highway of Japan connecting Asahikawa, Hokkaidō and Urakawa, Hokkaidō in Japan, with a total length of 260 km (161.56 mi).
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