National Route 378 is a national highway of

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

connecting

Iyo, Ehime file:Goshikihama Park Lighthouse.jpg, 270px, Goshikihama Park Lighthouse is a Cities of Japan, city located in Ehime Prefecture, Japan. , the city had an estimated population of 35,888 in 16169 households and a population density of 180 persons p ...

and

Uwajima, Ehime 270px, Uwajma City Hall 270px, Aerial view of Uwajma city center 270px, Japan National Route 320 in Uwajma city center is a city located in Ehime Prefecture, Japan. , the city had an estimated population of 70,440 in 35429 households and a pop ...

in Japan, with a total length of 124.1 km (77.11 mi).

References

National highways of Japan Roads in Ehime Prefecture 1975 establishments in Japan {{Japan-road-stub