National Road 18 (Japan)
National Road 18 in Japan | |
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Overall length: | 198.8 km |
National Road 18 in Nagano |
The national road 18 ( Japanese 国 道 18 号 , Kokudō 18-gō ) is an important road in Japan and crosses the Japanese main island of Honshū from Takasaki to Jōetsu .
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