National Route 406 | ||||
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国道406号 | ||||
Route information | ||||
Length | 192.5 km[1] (119.6 mi) | |||
Location | ||||
Country | Japan | |||
Highway system | ||||
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National Route 406 is a national highway of Japan connecting Ōmachi, Nagano and Takasaki, Gunma in Japan, with a total length of 192.5 km (119.61 mi).