According to the results of the excavation which started from 2005, the SOGA no Iruka's residence was found on Amakashi Hill in Asuka as well as the barracks and weapon storage at 'Tani no Mikado.'
2005年から始まった発掘の結果、飛鳥甘樫丘で蘇我入鹿の邸宅が、「谷の宮門（たにのみかど）」の谷の宮門で兵舎と武器庫の存在が確認された。