Japan National Route 257
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|---|---|
| 国道257号 | |
| 国道257号 | |
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| Route information | |
| Length | 241.6 km (150.1 mi) |
| Location | |
| Country | Japan |
| Highway system | |
National Route 257 is a national highway of Japan connecting Nishi-ku, Hamamatsu and Takayama, Gifu in Japan, with a total length of 241.6 km (150.12 mi).
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