From Ena Station on the Chuo Line to Nakatsugawa Station

Ena (恵那市, Ena-shi) is a city located in Gifu, Japan. As of 1 February 2019, the city had an estimated population of 50,429, and a population density of 100 persons per km2, in 19,820 households. The total area of the city was 504.24 square kilometres (194.69 sq mi).

Ena Station (恵那駅, Ena-eki) is a railway station in the city of Ena, Gifu Prefecture, Japan, operated by Central Japan Railway Company (JR Central) and by the third-sector railway operator Akechi Railway.

Nakatsugawa Station (中津川駅, Nakatsugawa-eki) is a railway station in the city of Nakatsugawa, Gifu Prefecture, Japan, operated by Central Japan Railway Company (JR Tōkai).

Ōi-juku (大井宿, Ōi-juku) was the forty-sixth of the sixty-nine stations of the Nakasendō. It is located in the present-day city of Ena, Gifu Prefecture, Japan. From Ōi-juku to the next post town, Ōkute-juku, there are 13 hills to pass over. Travellers using the Shitakaidō (下街道) often used Ōi-juku, too, as they travelled on to Makiganetsui (槙ヶ根追) afterwards.

Nakatsugawa-juku (中津川宿, Nakatsugawa-juku) was the forty-fifth of the sixty-nine stations of the Nakasendō. It is located in the present-day city of Nakatsugawa, Gifu Prefecture, Japan. During the Edo period, Nakatsugawa-juku reached a population of over 1,230 people and contained over 175 homes. There are many historical artifacts remaining today, including a stone monument with a haiku written by Matsuo Bashō.