National Route 420 is a national highway of

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

connecting

Toyota, Aichi , formerly known as Koromo, is a city in Aichi Prefecture, Japan. , the city had an estimated population of 426,162 and a population density of 464 people per km2. The total area was . It is located about 35 minutes from Nagoya by way of the Meite ...

and

Shinshiro, Aichi is a city located in Aichi Prefecture, Japan. , the city had an estimated population of 44,581 in 17,691 households, and a population density of 89.3 persons per km². The total area of the city is . Geography Shinshiro is located in east-cent ...

in Japan, with a total length of 66.5 km (41.32 mi).

References

National highways in Japan Roads in Aichi Prefecture {{Japan-road-stub