The Iwase River is a natural freshwater river located in Miyazaki prefecture in Kagoshima, Japan.[1] The watershed of the river is popular for the presence of numerous springs and waterfalls.[2][3][4] The river flows into the Oyodo River, which in turn flows to the Pacific Ocean.
- ^ Kato, Masahiro (2008). "A taxonomic study of Podostemaceae of Japan". Bulletin of the National Museum of Nature and Science, Series B. 34: 63–73.
- ^ "Idenoyama Yusui (Spring water of Idenoyama) Water Tour in Japan - Global Water -". Retrieved 2021-09-09.
- ^ FUJIWARA, Hideshi; SUGIO, Satoru (2001). LANDSCAPE RESTORATION OF WATERFALL AND PROTECTION OF AQUATIC PLANT KAWAGOROMO. Proceedings of the Symposium on Global Environment. Vol. 9. Japan Society of Civil Engineers. pp. 45–50.
- ^ 岩瀬ダム再生事業、ダム事業の新規事業採択時評価 説明資料.