Iehara was located in the vicinity of the Chidori-gawa River, a tributary of the Kako-gawa River, and Hozumi around the place where the Chidori-gawa River and the Kako-gawa River merged.
家原は加古川支流の千鳥川の近傍、穂積は千鳥川と加古川の合流地点付近に位置する。