[1] During the Edo period Tokugawa shogunate established ichirizuka on major roads, enabling calculation both of distance travelled and of the charge for transportation by kago or palanquin.

[2] These mounds, denoted the distance in ri (3.927 kilometres (2.440 mi)) to Nihonbashi, the "Bridge of Japan", erected in Edo in 1603.

[3] They were typically planted with an enoki or Japanese red pine to provide shelter for travelers.

Since the Meiji period, most of the ichirizuka have disappeared, having been destroyed by the elements, modern highway construction and urban encroachment.

The site is about 10 minutes by car from Sukagawa Station on the JR East Tōhoku Main Line.