It is located in the central part of the present-day city of Shiojiri, Nagano Prefecture, Japan.
This area was originally built by Ōkubo Nagayasu in the Keichō era of the early Edo period.
There was a shorter route along the Nakasendō that connected Shimosuwa-shuku and Niekawa-juku directly, but the route was changed to include this post town, as well as Seba-juku and Motoyama-juku, after Ōkubo's death.
During its most prosperous period, there were over 70 buildings in the town and it thrived as one of the kokudaka of the Matsumoto Domain.
[1] The post station also served as one terminus for the Sanshū Kaidō, a trade route which brought salt to Japan's interior.