|Pseudonym reading||A big clutter|
|Specified type||Prefecture designation|
|Designated date||March 23, 1976|
|location||Morioka City Tamayama-ku Ayukawa shaped turtle bridge|
|owner||Iwate Tourism Development Corporation|
Ohashi Isatozuka is located in Oji Ogawa River Kamebashi, Tamayama Ward, Morioka City.
There are two remaining mounds in the north and south across the former Komoto Kaido.
The position of the mound is to the west of Tsukanosawa Ichirizuka.
However, Lake Iwadong is built between Tsukanosawa Ichirizuka and Ohashi Ichirizuka, and it is not possible to clarify the range.
North side mound: East-west diameter 9 m, north-south diameter: 6 m, height 3 m.
South side mound: East-west diameter 9 m, north-south diameter 9 m, height 3 m.