Yasu River
 The Yasu River (野洲川 Yasu-gawa) is located in Shiga Prefecture Japan; it is the largest river to flow into Lake Biwa. It rises from Mount Gozaisho and flows through Kōka Konan Rittō Moriyama and Yasu. It forked at the lower reaches and made a delta region but they were combined in 1979.