Japan National Route 166
 | |
|---|---|
| 国道166号 | |
| 国道166号 | |
| Route information | |
| Length | 125.4 km (77.9 mi) |
| Location | |
| Country | Japan |
| Highway system | |
National Route 166 is a national highway of Japan connecting Habikino, Osaka and Matsusaka, Mie in Japan, with a total length of 125.4 km (77.92 mi).
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