There is one place named Iwagatani in Japan.
All places in the world called "Iwagatani".
Ono (18)
Ota (17)
Hongo (16)
Minato (15)
Wada (15)
Ohama (14)
Tomari (14)
Kawasaki (14)
Hama (14)
Nakamura (13)
Hara (13)
Nagahama (13)
Oshima (13)
Sakai (12)
Yoshida (12)
Okubo (12)
Kawaguchi (11)
Funakoshi (11)
Shinden (11)
Seto (11)
Okawa (11)
Kanayama (11)
Hirose (11)
Takata (10)
Oura (10)
Otani (10)
Shirahama (10)
Ichiba (10)
Ikeda (10)
Kamo (10)