中仙道の一里塚跡

An explanatory signboard for the site of Ichirizuka on the Nakasendo in the Edo period. Ichirizuka is drawn in the middle of the tree-lined avenue in both the Nakasendo minute extension map and the Kisoji Yasumi map. The upper Kido of Kuragano-shuku is about 300m east of the current Uemachi Nishi intersection, and when you leave the Kido, it becomes a tree-lined road. In front of the mound, Anrakuji is drawn on the highway, Rinsaiji is drawn away from the highway, and there is a field road on the west side of Kitatsuka. From the above, there is almost no mistake around here. However, there is a mistake in this explanatory sign. It is "26th from Nihonbashi", but this is not correct. The distance from Nihonbashi to Kuragano is about 104km, which is the 26th sato, but in the Nakasendo minute extension map compiled in 1800, only 19 Ichirizuka from Nihonbashi to Kuragano are drawn. Isn't there 26 places in the meantime because it's called Ichirizuka? Isn't 7 places drawn? I think that. But it's different. It seems that Ichirizuka was not built exactly for each ri. For example, the distance between Ageo and Okegawa's Ichirizuka is 4.7km, which is relatively old and the location of the remaining Ichirizuka is almost fixed (although it has disappeared). In addition, the first Ichirizuka is confirmed in Hongo Oiwake, the second is around Hirao (near Itabashi Station) although the location is not fixed, and the next is Shimura's Ichirizuka. The actual measurement distance from Hongo to Shimura is 9km. In addition, most of the distances between Ichirizuka are over 4km, so the distance gradually shifts and the distance and the number of Ichirizuka do not match. By the way, although not drawn in the Nakasendo minute drawing, Ichirizuka, which may have existed, was Toda (washed out due to the flooding of the Arakawa River?), Omiya (was left behind on the old road due to the route change of Nakasendo?), And horse. Murohara (left behind on the old road due to the route change of Nakasendo, but still exists), Fukaya (unknown), and Tateishi (washed out due to the flooding of the Karasu River?). A total of 24 Ichirizuka. Considering the distance from Nihonbashi, "11th: Ichirizuka in Bamurohara" is about 47km = ​​about 12 ri, and "19th: Ichirizuka in Okashita" is about 83km = about 21 ri. There is a gap. In the case of Ichirizuka, which is not shown in the minute drawing, it is about one Ichirizuka from the distance before and after that, so there is almost no doubt that Kuragano is the 24th. It is not clear what the historic site information board of Kuragano Ichirizuka is based on, but if it is based on the Nakasendo minute extension picture, "26 ri 24th (or 19th) Ichirizuka" Is the correct notation.