As for the location of Tarano, the theory, which believes it to be in the northern part of Iga (a part of Ise Province at that time), is widely accepted, however, it was a good location to guard Iga in the pathways from Yamato - Iga - Ise - Mino.
莿萩野の位置については、伊賀（当時は伊勢国に属す）の北部との説が有力であるが、いずれにせよ大和-伊賀-伊勢-美濃と続く連絡線のうち伊賀を守る位置である。