Water Basin
- Elancik 1
- Golema Dere >> Bulgaria 1
- Gruzskiy Yelanchik 1
- Hruzkyi Yalanchyk >> Ukraine 1
- Kogilnik 1
- Kohylnyk >> Moldova 1
- Lava 1
- Lava/Pregel 1
- Mius >> Russia 1
- Mius 1
- Mokryy Yelanchik >> Russia 1
- Mutlu Dere >> Bulgaria 1
- Po River 1
- Po 1
- Pregolya 1
- Prohladnaja 1
- Prokhladnaya 1
- Psou >> Georgia 1
- Psou 1
- Rezvaya 1