Mt. Iware is located in Tani, Sakurai City, which is in the vicinity of Sakurai mura, Abe mura, Kaguyama mura, Shiki gun, Nara Prefecture (the area covering a central part of Sakurai City, Nara Prefecture and a southeast part of Kashihara City of today).
奈良県磯城郡桜井村・阿部村・香具山村付近（今、奈良県桜井市中部から橿原市東南部にかけての地）で、桜井市谷には磐余山がある。